GUIDE
Oshi-katsu app picks — how to choose by use case (2026 edition)
Oshi-katsu apps split into four broad categories. Pick a use case from the map and tables below, then read each section. Fan Coffret is a fan-side record app.
Oshi-katsu apps — four-category map
Apps with different goals are often used together (e.g. Weverse for community + Fan Coffret for records).
①Fan-side · recordsFan Coffret · OshibanaRecord your oshi-katsu on device②Oshi-side · official FCWeverse · bubble · b.stageAgencies and artists gather fans③StreamingYouTube · Niconico · SHOWROOMFollow live streams and archives④Home Screen decorationWidgetsmith · WidgetClubOshi colors on widgets and wallpapers
Fan-side apps vs oshi-side services
Oshi-side
Run by artists and agencies
Weverse · bubble · b.stage
- Join official communities per oshi
- Official posts · FC-only content
- Fan-to-fan interaction
Fan-side
Fans register oshi themselves
Fan Coffret · Oshibana
- Register any oshi or favorite freely
- Not limited to people (works · characters, etc.)
- On-device records · schedule · widgets
Importing data into Fan Coffret
Users choose files themselves (no automatic sync or automatic migration).
ZIPOshibanaExport ZIP
Fan Coffret
ICSOshikyunICS data
Fan Coffret
ICSStreaming sites, etc.Public ICS / .ics
Fan Coffret
Apps for recording oshi-katsu
Apps centered on recording oshi-katsu — live/stream notes, merch, memory photos, and more.
| App | App Store ratings | Recording highlights |
|---|---|---|
| Fan Coffret | — | Sticker journal · photos · mood · anniversaries · schedule · TODO · merch · ZIP import · unlimited registration |
| Oshibana | ~13k | Notes · merch · integrated widgets |
App details
Fan Coffret
- iOS 17+ · no limit on oshi/favorite registrations
- Fan-side app — register any oshi or favorite freely (not limited to people)
- Memory Room — sticker journal (photos · stickers · mood icons) for daily oshi-katsu
- Calendar & schedule — live plans · anniversaries · device calendar · ICS subscription
- Anniversary countdown — since you started stanning · since debut · since birthday, etc.
- Mood check-in — save the day's feeling with tension and face icons
- Todo list — manage tasks (for forgetful fans)
- Merch management · import Oshibana export ZIP yourself
Oshibana (Oshibana oshi-katsu app)
- ~13k App Store (Japan) ratings (as of 2026-07-31)
- Oshi-katsu notes · merch records · anniversary widgets
- Popular app combining Home Screen customization and records
Registration types compared — oshi, partner, family, product, team, and more
Compares what you can register as one card. Symbol guide — ◎ well suited · ○ workable via oshi slot · △ limited · — not intended. Fan Coffret also registers non-oshi-katsu favorites (partner · family · target university · original character, etc.) with no cap.
| App | Oshi · idol | Partner | Family · children | Product · merch | Team · group | OC · concept | Notes |
|---|---|---|---|---|---|---|---|
| Fan Coffret | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | Unlimited registration · groups · rich profile fields |
| Oshibana | ◎ | ○ | ○ | ◎ | ○ | ○ | Oshi-katsu UI focus · can use oshi slot |
| Weverse | △ | — | — | — | △ | — | Official FC join · not free-form registration |
| Lifebear | — | — | △ | — | — | — | Planner · diary · not card-registration style |
Registration details by app
Fan Coffret
- Register oshi/idols plus partners, family, and children as the same favorite card
- Merch — classify per oshi · counters · exchange ledger; also record favorite items alone
- Teams/groups — oshi groups · sports teams as one card; organize lists with groups
- Original characters · target universities · works · places · concepts — not limited to people (anniversaries from BCE to 9999 CE)
- No paid cap on oshi count or data — usable for daily life beyond oshi-katsu
Oshibana (Oshibana oshi-katsu app)
- ~13k App Store (Japan) ratings
- UI and widgets centered on oshi/idols
- Strong merch records and anniversaries for oshi-katsu
- Partners/family can be registered in oshi slots but not category-agnostic like Fan Coffret
Weverse
- Join official fan clubs per artist/group
- Not an app to freely add any oshi you like
- Not suited for recording personal partners, family, or products
Lifebear
- ~320k App Store (Japan) ratings
- Calendar · planner · diary · TODO centered
- Works as a shared family calendar but not card-style oshi/product registration
Anniversary & countdown apps — couples and oshi-katsu milestones
Dedicated apps for “days until” and “days since.” “Alerts” reflects reminder richness (day-of, daily, etc.); “Entry limit” is a free-tier guide (paid plans may add more). Couple apps often combine closed (invite-only), two-only, and one-partner designs; for oshi and fictional character anniversaries, Fan Coffret or Anniversary Today fit better. Symbols — ◎ well suited · ○ partial · △ limited (free-text workaround) · — not supported. Ratings are App Store (Japan) as of 2026-07-31. ※ COUPPLY and 365 Days Anniversary have fewer ratings but are listed as representative couple apps (reference: [AppLiv anniversary roundup](https://app-liv.jp/lifestyle/scheduler/0598/)).
| App | Origin | App Store ratings | Countdown | Count-up (days since) | Widget | Alerts | Entry limit | Closed | Two only | One partner | Oshi register | Fiction / OC | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fan Coffret | Japan | — | ◎ | ◎ | ◎ | ○ | Unlimited | — | — | — | ◎ | ◎ | Oshi · partner · records · widget sync |
| Atmaru Countdown | Japan | ~5.2k | ◎ | — | ◎ | ◎ | 1 (free) | — | — | — | △ | △ | Events · birthdays · trips |
| At Nannichi | Japan | ~14k | ◎ | ◎ | ◎ | ◎ | Unlimited | — | — | — | △ | △ | Repeat · daily alerts |
| Koishite | Japan | ~7.2k | △ | ◎ | ◎ | ◎ | Multiple | — | ◎ | ◎ | — | — | Relationship start · 100 days · 1 year |
| The Couple | South Korea | ~6.4k | — | ◎ | ◎ | ◎ | One couple | ◎ | ◎ | ◎ | — | — | D-day · 100 days · 1 year |
| Anniversary Today | Japan | ~7.6k | ◎ | ◎ | ◎ | ◎ | Multiple | — | — | — | ◎ | ○ | Oshi-katsu and partner both OK |
| SumOne | South Korea | ~81k | — | ◎ | — | ◎ | One pair | ◎ | ◎ | ◎ | — | — | Daily Q&A · pet · closed SNS |
| COUPPLY | Japan | ~600 | — | ◎ | △ | ○ | One pair | ◎ | ◎ | ◎ | — | — | Japan-made · thread-style chat |
| 365 Days Anniversary | Japan | ~300 | ◎ | ◎ | — | ○ | Multiple | — | — | — | △ | △ | Diary · tag management |
Anniversary app details
Fan Coffret
- Register oshi/idols plus fiction, OCs, and works as favorite cards — no cap
- Anniversaries per oshi (since stanning, debut, birthday) — better suited for oshi-katsu than anniversary-only apps
- Partners and family on the same cards — countdown/days-since on Home Screen widgets
- Not a “two only / one partner” couple app — integrated with sticker journal, calendar, and mood
Atmaru Countdown
- ~5.2k App Store (Japan) ratings (as of 2026-07-31)
- Count down days until trips, events, birthdays, and more
- Strong notifications — reminders on the day and the day before
At Nannichi
- ~14k App Store (Japan) ratings
- Unlimited entries · repeating anniversaries · countdown and days-since
- Alerts so you do not forget — works beyond couple use cases
Koishite
- ~7.2k App Store (Japan) ratings
- Auto-calculates days since relationship start — 100 days, 1 year, etc.
- Couple staple from anniversaries to goal tracking
The Couple
- ~6.4k App Store (Japan) ratings
- Shows 100 days and 1 year from D-day (relationship start) automatically
- Korean couple app popular in Japan too
Anniversary Today
- ~7.6k App Store (Japan) ratings
- Supports both oshi-katsu anniversaries and partner anniversaries
- Countdown/days-since · notifications · widgets
SumOne
- ~81k App Store (Japan) ratings
- Closed SNS for couples — daily questions to grow closer
- Anniversary counts plus pet-raising and similar features
COUPPLY
- ~600 App Store (Japan) ratings (lower count · as of 2026-07-31)
- Made in Japan — thread-style chat for couples and spouses
- Anniversary management plus organized conversation threads
365 Days Anniversary
- ~300 App Store (Japan) ratings (lower count · as of 2026-07-31)
- Turn everyday moments into anniversaries — diary and tags
- Concept: fill all 365 days with meaningful dates
Oshi-katsu apps for schedule and information
Apps mainly for managing schedules and info — stream plans, events, anniversary alerts, and more.
| App | App Store ratings | Schedule highlights | Status |
|---|---|---|---|
| Fan Coffret | — | ICS subscription · calendar · Oshikyun ICS import | Active |
| Oshibana | ~13k | Oshi schedule · anniversary alerts | Active |
| Oshitasu | — | Auto oshi schedule aggregation · push · oshi notes | Ended |
| Oshikyun | — | Color-coded calendar · fortune log | Ended |
| Shikaro | — | Oshi calendar · appearance schedule | Ended |
App details
Fan Coffret
- Import Oshikyun ICS data yourself
- Calendar shows your records alongside device calendars
- Supports ICS files (.ics) and public calendar subscription
Oshibana (Oshibana oshi-katsu app)
- ~13k App Store (Japan) ratings
- Manage oshi schedules — media appearances, events, etc.
- Anniversary alerts · widget sync
OshitasuService ended (2024-09-12)
- From Recruit Co., Ltd. — oshi-katsu support service from Ring intrapreneurship (selected from 834 entries in 2020)
- Oshi-katsu calendar auto-aggregating K-POP/J-POP appearances · tickets · SNS · release info
- Push notifications · oshi notes (photo records) · translation — free (no in-app purchases)
- Service ended September 12, 2024 (removed from App Store)
- Alternatives: Fan Coffret (ICS subscription · calendar), Oshibana (oshi schedule)
OshikyunService ended (2026-06-30)
- Sanrio oshi-katsu calendar app (ended June 30, 2026)
- Known for color-coded calendar · categories · daily fortune log
- Alternatives: Fan Coffret (calendar · categories), Oshibana (oshi schedule)
ShikaroService ended (2023-06-30)
- NTT Solmare oshi calendar app (ended June 30, 2023)
- Calendar of anime · game · voice actor appearances and release dates
- Alternatives: Fan Coffret (ICS subscription · calendar), Oshibana (oshi schedule)
Calendar-only comparison — Fan Coffret vs general calendar apps
Google Calendar or TimeTree is often enough if you only need a schedule. Fan Coffret fits when you want oshi-katsu records (sticker journal · mood) and schedules together, or ICS stream schedules per oshi.
| App | Origin | App Store ratings | Create events | ICS / external calendar | Oshi-katsu record link | Notes |
|---|---|---|---|---|---|---|
| Fan Coffret | Japan | — | ◎ | ◎ | ◎ | ICS subscription · device calendar overlay · unofficial schedule labels |
| Google Calendar | United States | ~38k | ◎ | ○ | — | Google account sync · sharing · reminders |
| TimeTree | Japan | ~1.03M | ◎ | △ | — | Share with family/friends · comments |
| Lifebear | Japan | ~320k | ◎ | △ | △ | Planner-style UI · diary · TODO elements |
| Apple Calendar (built-in) | United States | Built-in | ◎ | ○ | — | iOS standard · iCloud · readable from Fan Coffret |
Calendar app details
Fan Coffret
- Memory Room calendar — month view with sticker journal page thumbnails in day cells
- Your events · anniversaries · list view
- ICS subscription — public URL · .ics files · stream schedule calendars · Oshikyun ICS import
- Device calendar display — read-only overlay of Apple built-in · Google (via iPhone sync) inside Fan Coffret
- Unofficial fan-made schedules labeled in-app
Google Calendar
- ~38k App Store (Japan) ratings (as of 2026-07-31)
- Sync with Google account · strong sharing and invites
- Reminders · recurring events · multi-calendar color coding
- No oshi-katsu-specific features — general scheduling
TimeTree
- ~1.03M App Store (Japan) ratings
- Share calendars with family, couples, and friends
- Comments on events · attendance confirmation
- No oshi-katsu record link — focused on shared schedules
Lifebear
- ~320k App Store (Japan) ratings
- Calendar plus planner · diary · TODO in one app
- Cute UI · sticker and background customization
- Less specialized than Fan Coffret for oshi-katsu ICS import and record linking
Apple Calendar (built-in)
- Preinstalled on iOS · no App Store rating
- iCloud sync · Siri · widgets · Reminders integration
- Fan Coffret can show device calendar read-only
- Google Calendar appears similarly after iPhone Settings → Calendar → Accounts sync
Fan club and community apps run by oshi-side operators
Oshi-side services where artists and agencies gather fans. The table below shows example artists and groups.
| Platform | App Store ratings | Example artists/groups | Main uses |
|---|---|---|---|
| Weverse | ~72k | BTS · SEVENTEEN · TXT · ENHYPEN · LE SSERAFIM · aespa · NCT · RIIZE, etc. | Official posts · community · streams |
| bubble | Multiple apps | NCT · aespa · TWICE · Stray Kids · IVE · THE BOYZ · STAYC, etc. | Paid DM · personal messages |
| b.stage | ~5k+ | G-DRAGON · BIGBANG · Taeyang · D.O. · EPIK HIGH · JAY B · T1, etc. | FC · member-only · ticket presales |
| Fan Coffret | — | (Fan-side records — different category) | Personal records · ZIP/ICS |
App details
Weverse
- ~72k App Store (Japan) ratings (as of 2026-07-31)
- HYBE-operated global fandom platform
- Examples: BTS, SEVENTEEN, TOMORROW X TOGETHER, ENHYPEN, LE SSERAFIM, ILLIT, BOYNEXTDOOR, &TEAM, etc.
- SM groups such as aespa · NCT · RIIZE also host communities
- Mainly fan interaction · official posts · live stream viewing
bubble (Dear U)
- Multiple agency-specific bubble apps on the App Store (bubble with STARS, bubble for JYPnation, etc.)
- Paid messaging between individual artists and fans
- Examples: NCT, aespa, Red Velvet, EXO, TWICE, Stray Kids, ITZY, IVE, THE BOYZ, STAYC, etc.
- Also used by actors · YouTubers beyond K-POP
b.stage
- ~5k+ App Store (Japan) ratings
- Fan club platform for artists · talents · IP
- Examples: G-DRAGON, BIGBANG, Taeyang, D.O., EPIK HIGH, JAY B, JUNNY, Na In-woo, etc.
- Official communities for teams/IP such as T1 (esports)
- Member-only content · live streams · ticket presales, etc.
Fan Coffret
- Different category from Weverse — personal record app where fans register oshi themselves
- Not an oshi-side official community — manages on-device memories · schedule · widgets
- Can register non-person oshi (works · characters · goals, etc.)
Apps for watching oshi live streams
Platforms for watching oshi streams. VTubers often use YouTube and Niconico; V-focused apps include IRIAM and REALITY. See Streaming comparison below.
| Platform | App Store ratings | Example streamers | Good for oshi-katsu |
|---|---|---|---|
| YouTube | ~2M+ | Hololive · Nijisanji · indie VTuber · various artists | Archives · membership |
| Niconico Live | ~100k+ | VTuber · game streams · singing streams | Comment culture · live |
| SHOWROOM | ~120k | Sakamichi groups · underground idols · VTuber | Idol streams |
| 17LIVE | ~88k | Talents · singers · influencers | Gifts · two-way |
| Pococha | ~56k | Agency to solo streamers | Casual streams |
| IRIAM | ~17k | V-Liver (illustrated character) | V-focused · no face cam |
| REALITY | ~5k+ | V-Liver (3D avatar) | V beginner |
App details
SHOWROOM
- ~120k App Store (Japan) ratings (as of 2026-07-31)
- Sakamichi idol group members stream here
- Also many VTubers, underground idols, and singers
- Rich oshi-katsu features — rankings · events · fan rooms
17LIVE
- ~88k App Store (Japan) ratings
- Talents · singers · influencers live stream
- Watch style enjoying closeness via gifts and comments
- Taiwan-based with regional brands outside Japan
Pococha
- ~56k App Store (Japan) ratings
- DeNA live stream and communication app
- Streamers from agencies to individuals
- For casual two-way communication
YouTube
- 2M+ App Store (Japan) ratings
- Live and archive viewing for VTubers · singers · idols · talents
- Examples: Hololive, Nijisanji, indie VTubers, official artist channels
- Membership · Super Chat — oshi-katsu staple platform
Niconico Live
- Via Niconico app (~100k+ ratings)
- VTuber · game streams · singing · live event relays
- Scrolling comments popular with oshi-katsu fans
- Many fans import stream schedules via ICS, etc.
IRIAM
- ~17k App Store (Japan) ratings
- VTuber app streaming with illustrated characters (V-Liver)
- Easy to start V streaming without showing your face
- Many solo V-Livers for chat · singing · karaoke
REALITY
- ~5k+ App Store (Japan) ratings
- V-Liver app streaming with 3D avatars
- Often used as VTuber/virtual streaming entry point
- Some V-Livers also use YouTube and Niconico
Streaming apps compared — watch style and paid options
Compare where and how you watch oshi streams. Symbols — ◎ strong · △ limited · — none/other use. Most viewing is free; gifts · membership · Premium are optional.
| App | Origin | App Store ratings | Example streamers | Live | Archive | Interaction & support | Paid (viewer side) |
|---|---|---|---|---|---|---|---|
| YouTube | United States | ~2M+ | Hololive · Nijisanji · various artists | ◎ | ◎ | Comments · membership · SC · Community | Premium · membership · SC |
| Niconico | Japan | ~100k+ | VTuber · game streams · singing streams | ◎ | △ | Comment overlay · gifts · clips | Premium · gifts · timeshift |
| SHOWROOM | Japan | ~120k | Sakamichi groups · underground idols · VTuber | ◎ | △ | Comments · gifts · rankings · fan rooms | Paid gifts (SG/NG, etc.) |
| 17LIVE | Taiwan | ~88k | Talents · singers · influencers | ◎ | — | Comments · gifts · rankings | Buy coins → send gifts |
| Pococha | Japan | ~56k | Agency-affiliated to solo streamers | ◎ | — | Comments · gifts · two-way talk | Coins · gifts |
| IRIAM | Japan | ~17k | V-Liver (illustrated character) | ◎ | — | Comments · gifts · events | Coins · gifts |
| REALITY | Japan | ~5k+ | V-Liver (3D avatar) | ◎ | — | Comments · gifts | Coins · gifts · avatars, etc. |
Streaming app details
YouTube
- Origin: United States (Google)
- Both live streams and archives (VOD) — standard for VTubers, idols, and talents
- Free to watch — YouTube Premium (ad-free · background play) · channel membership · Super Chat / Super Thanks
- For oshi-katsu: membership-only streams and community posts too (channel-dependent)
Niconico Live
- Origin: Japan (Kadokawa)
- Watch via the Niconico app — comments scrolling on screen is the signature experience
- Free to watch — Premium (comment colors · timeshift, etc.) · gifts · paid programs (title-dependent)
- VTuber singing streams · game streams · many fans import oshi ICS schedules into calendar apps
SHOWROOM
- For idols and VTubers — many Sakamichi group members and underground idols stream here
- Free to watch — paid gifts (SG/NG, etc.) · event voting · fan rooms
- Rankings and event tie-ins often motivate oshi-katsu fans
17LIVE
- Talents and influencers — watch by supporting oshi with gifts
- Free to watch — buy coins → send gifts
- Taiwan-based with regional variants outside Japan
Pococha
- Operated by DeNA — casual live streams and two-way communication
- Free to watch — coins/gifts · streamer events (when available)
- Streamers from agencies to individuals
IRIAM
- Illustrated-character (V-Liver) focused — stream without showing your face
- Free to watch — coins/gifts · operator/streamer events
- Many solo Vs for chat · singing · karaoke
REALITY
- Stream with a 3D avatar — beginner-friendly for V streaming
- Free to watch — coins/gifts · avatars/items (in-app purchases possible)
- Some Vs also stream to YouTube and Niconico
Alternatives for ended apps (Oshikyun · Shikaro · Oshitasu)
Oshikyun, Shikaro, and Oshitasu have ended but remain common search targets for alternatives.
| Ended app | End date | Highlights | Alternative in Fan Coffret |
|---|---|---|---|
| Oshikyun | 2026-06-30 | Color-coded calendar · fortune log | ICS import · Memory Room |
| Shikaro | 2023-06-30 | Oshi calendar · appearance schedule | ICS subscription · calendar |
| Oshitasu | 2024-09-12 | Auto oshi schedule · push · oshi notes | ICS subscription · calendar |
App details
OshikyunService ended (2026-06-30)
- From Sanrio. Color-coded calendar · categories · daily fortune log
- Managed personal and oshi schedules in one calendar
- Service ended June 30, 2026
ShikaroService ended (2023-06-30)
- From NTT Solmare. Calendar of anime · game · voice actor appearances and releases
- Otaku schedule management showing official oshi work info
- Service ended June 30, 2023
OshitasuService ended (2024-09-12)
- From Recruit Co., Ltd. — born from Ring intrapreneurship (selected from 834 entries in 2020 Ring)
- Oshi-katsu calendar auto-aggregating appearances · tickets · SNS · release info
- Push · oshi notes · translation — free (business validation pilot)
- Service ended September 12, 2024
Fan Coffret
- Import Oshikyun ICS data yourself
- Import ZIP exported from Oshibana yourself
Oshibana (Oshibana oshi-katsu app)
- ~13k App Store (Japan) ratings
- Oshi schedule · anniversary alerts · widgets
- Active app combining records and schedule
Apps for phone customization (widgets)
Apps to decorate Home Screen and Lock Screen with oshi colors and images. See the detailed comparison below for widget types, core app features, and paid scope.
| App | Origin | App Store ratings | Decoration highlights |
|---|---|---|---|
| Widgetsmith | United States | ~140k | Clock · calendar · photo · weather · battery · countdown · text · stacks |
| iScreen | China | ~54k | Clock · calendar · weather · photo · health templates, etc. |
| WidgetClub | China | ~46k+ | Photo · countdown · clock · calendar · weather · battery |
| Widgy | United States | ~26k | Custom (layers) · clock · weather · health · countdown · Scriptable integration |
| Color Widgets | United States | ~11k | Photo · clock · weather · countdown · battery · calendar |
| Widgify | China | ~5.7k | Live wallpaper · audio · StandBy · clock-style |
| Oshibana | Japan | ~13k | Oshi images · anniversary countdown · live wallpaper · oshi calendar |
| Fan Coffret | Japan | — | 16 types shipped (anniversary · clock · image · Music · YouTube, etc.) + 20 in preparation |
App details
Widgetsmith
- ~140k App Store (Japan) ratings
- Multi-type widgets — clock · calendar · photo · countdown, etc.
- High layout freedom; can create oshi photo widgets
iScreen (Home & Lock Screen widget beautifier)
- ~54k App Store (Japan) ratings
- Rich theme sets — widgets · icons · skins
- Lock Screen and StandBy decoration
WidgetClub
- ~46k+ App Store (Japan) ratings
- Focused on widget · icon · wallpaper customization
- For Home Screen decoration with oshi photos and videos
Widgy Widgets
- ~26k App Store (Japan) ratings
- Build original widgets with layer editing
- Combine oshi images · countdown · weather freely
Color Widgets
- ~11k App Store (Japan) ratings
- Many templates — photo · countdown · weather, etc.
- Easy to apply theme · icon · wallpaper sets
Oshibana (Oshibana oshi-katsu app)
- ~13k App Store (Japan) ratings
- Oshi image widgets · live wallpaper · anniversary countdown
- Widgets sync with oshi-katsu data
Widgify
- ~5.7k App Store (Japan) ratings
- Live wallpaper · audio widgets · StandBy
- Easy to place oshi voice or photos on Home Screen
Fan Coffret
- iOS 17+ · unlimited oshi/favorite registration · Home Screen & Lock Screen · Live Activity (Dynamic Island) · small/medium/large (iOS 27 extra-large in trial)
- Shipped (Home Screen) — image · anniversary (days since ○○) · countdown · today's date · time · flip clock · analog clock · calendar · year progress · todo list · Apple Music · YouTube playback · photo flip · quotes · memory records · merch
- In preparation (type picker · cannot create new) — schedule · album · weather · fortune · battery · audio playback · shortcut · world clock · weight · step counter · YouTube subscribers · YouTube total views · YouTube bookmarks · Spotify · X · TwitCasting · Twitch · Niconico · Instagram · TikTok
- Create multiple widgets per oshi linked to in-app data (different category from decoration-only apps)
Widget apps compared — types, core features, paid
Decoration-only apps (Widgetsmith, etc.) lack record features and mainly display oshi images. Fan Coffret and Oshibana are oshi-katsu core apps whose widgets sync with in-app data. App Store listings are authoritative for pricing.
| App | Origin | App Store ratings | Widget types | Beyond widgets | Paid |
|---|---|---|---|---|---|
| Widgetsmith | United States | ~140k | Clock · calendar · photo · weather · battery · countdown · text · stacks | Lock Screen · StandBy | Premium — large/extra widgets · themes |
| iScreen | China | ~54k | Clock · calendar · weather · photo · health templates, etc. | Bulk icons · wallpapers · theme sets · Lock Screen | Pro — all themes/assets |
| WidgetClub | China | ~46k+ | Photo · countdown · clock · calendar · weather · battery | Icons · wallpapers · Lock Screen · Dynamic Island (when supported) | Premium — full assets · video wallpapers, etc. |
| Widgy | United States | ~26k | Custom (layers) · clock · weather · health · countdown · Scriptable integration | Widget creation is the focus | Pro — layer limit · export · data sources |
| Color Widgets | United States | ~11k | Photo · clock · weather · countdown · battery · calendar | Icons · wallpapers · bulk theme apply | Premium — all templates · theme packs |
| Widgify | China | ~5.7k | Live wallpaper · audio · StandBy · clock-style | Icons · static wallpapers | Pro — video/audio · full StandBy assets |
| Oshibana | Japan | ~13k | Oshi images · anniversary countdown · live wallpaper · oshi calendar | Records · merch · schedule · oshi-katsu core app | Premium — ad removal · extra widgets, etc. |
| Fan Coffret | Japan | — | 16 types shipped (anniversary · clock · image · Music · YouTube, etc.) + 20 in preparation | Sticker journal · mood · TODO · ICS · Oshi Color Hunt (core app) | Core features free · optional ad removal, etc. |
Widget app details
Widgetsmith
- General-purpose widget staple — combine S/M/L sizes on the Home Screen
- Free: basic widgets · Paid: Premium sub — extra sizes · themes · full photo widgets
- Common use: oshi photos on photo widgets (no record-app sync)
iScreen
- Rich theme sets (widgets + icons + wallpapers)
- Free: some templates · Paid: Pro — all assets · extra widgets · Lock Screen/StandBy
- Easy to find oshi-color themes and apply in bulk
WidgetClub
- Decoration-focused — oshi photos/videos on widgets and wallpapers
- Free: part of assets · Paid: Premium — full wallpapers/widgets/icons
- No record features — pair with Fan Coffret or Oshibana
Widgy Widgets
- Build original widgets with layer editing — high freedom
- Free: basic creation (limited) · Paid: Widgy Pro — layer count · export · extra data sources
- Often combines oshi image · countdown · weather in one widget
Color Widgets
- Many templates — place photo · countdown · weather quickly
- Free: some templates · Paid: Premium — all templates · theme/icon/wallpaper packs
- Easy theme apply to match oshi colors
Widgify
- Live wallpapers · audio widgets · StandBy are strengths
- Free: some assets · Paid: Pro — full video/audio · StandBy assets
- For fans who want oshi voice or live footage on the Home Screen
Oshibana (Oshibana oshi-katsu app)
- Oshi-katsu data sync — oshi images · anniversary countdown · live wallpaper
- Beyond widgets: notes · merch · schedule · records are the core
- Paid: Premium plan (monthly/yearly) — ad removal · widget expansion, etc.
Fan Coffret
- iOS 17+ · register multiple widgets per oshi · Home Screen & Lock Screen · Live Activity (Dynamic Island) · small/medium/large (iOS 27 extra-large in trial)
- Shipped (can place on Home Screen) — image · anniversary (days since ○○) · countdown · today's date · time · flip clock · analog clock · calendar · year progress · todo list · Apple Music · YouTube playback · photo flip · quotes · memory records · merch
- In preparation (shown in type picker · cannot create new) — schedule · album · weather · fortune · battery · audio playback · shortcut · world clock · weight · step counter · YouTube subscribers · YouTube total views · YouTube bookmarks · Spotify · X · TwitCasting · Twitch · Niconico · Instagram · TikTok
- Beyond widgets: sticker journal · mood · TODO · ICS · Oshi Color Hunt (unlimited registration) · core features free
Apps to consider instead of Oshibana (oshi-katsu app)
Depending on use case, fans switch or combine other apps.
| Use case | Recommendation | Data migration |
|---|---|---|
| Records · widgets · oshi color | Fan Coffret | Import Oshibana ZIP yourself |
| Decoration only | WidgetClub · iScreen · Widgetsmith, etc. | — |
App details
Fan Coffret
- iOS app combining records · widgets · Oshi Color Hunt
- Fan-side app — register any oshi or favorite (not limited to people)
- Import ZIP exported from Oshibana yourself
WidgetClub / iScreen / Widgetsmith / Widgy / Color Widgets
- Mainly widget · wallpaper · icon decoration (each 5,000+ App Store ratings)
- Standard choices for Home Screen oshi images only, outside Oshibana
- Often paired with Fan Coffret or Oshibana for records and schedule
Widgify
- ~5.7k App Store (Japan) ratings
- Decoration app focused on live wallpaper and audio widgets
- Limited record features — best as decoration companion
Oshi-katsu app comparison (by use case)
App Store (Japan) rating counts are approximate as of 2026-07-31. Choose by use case — official FC vs fan-side records are different categories. See Paid features below for paid overview.
Fan-side records
| App | Origin | App Store ratings | Records | Schedule | Widgets | Paid | Notes |
|---|---|---|---|---|---|---|---|
| Fan Coffret | Japan | — | ◎ | ○ | ○ | Core features free | Sticker journal · mood · anniversaries · TODO · ZIP/ICS · non-person OK |
| Oshibana | Japan | ~13k | ○ | ○ | ◎ | Premium | Integrated oshi-katsu |
| Oshitasu | Japan | Ended | △ | ◎ | — | — | Ended 2024-09-12 · Recruit Ring |
| Oshikyun | Japan | Ended | ○ | ◎ | △ | — | Ended 2026-06-30 |
| Shikaro | Japan | Ended | — | ◎ | — | — | Ended 2023-06-30 |
Oshi-side · official fan club
Streaming
| App | Origin | App Store ratings | Example streamers | Live | Archive | Interaction & support | Paid (viewer side) |
|---|---|---|---|---|---|---|---|
| YouTube | United States | ~2M+ | Hololive · Nijisanji · various artists | ◎ | ◎ | Comments · membership · SC · Community | Premium · membership · SC |
| Niconico | Japan | ~100k+ | VTuber · game streams · singing streams | ◎ | △ | Comment overlay · gifts · clips | Premium · gifts · timeshift |
| SHOWROOM | Japan | ~120k | Sakamichi groups · underground idols · VTuber | ◎ | △ | Comments · gifts · rankings · fan rooms | Paid gifts (SG/NG, etc.) |
| 17LIVE | Taiwan | ~88k | Talents · singers · influencers | ◎ | — | Comments · gifts · rankings | Buy coins → send gifts |
| Pococha | Japan | ~56k | Agency-affiliated to solo streamers | ◎ | — | Comments · gifts · two-way talk | Coins · gifts |
| IRIAM | Japan | ~17k | V-Liver (illustrated character) | ◎ | — | Comments · gifts · events | Coins · gifts |
| REALITY | Japan | ~5k+ | V-Liver (3D avatar) | ◎ | — | Comments · gifts | Coins · gifts · avatars, etc. |
Widget decoration
| App | Origin | App Store ratings | Widget types | Beyond widgets | Paid |
|---|---|---|---|---|---|
| Widgetsmith | United States | ~140k | Clock · calendar · photo · weather · battery · countdown · text · stacks | Lock Screen · StandBy | Premium — large/extra widgets · themes |
| iScreen | China | ~54k | Clock · calendar · weather · photo · health templates, etc. | Bulk icons · wallpapers · theme sets · Lock Screen | Pro — all themes/assets |
| WidgetClub | China | ~46k+ | Photo · countdown · clock · calendar · weather · battery | Icons · wallpapers · Lock Screen · Dynamic Island (when supported) | Premium — full assets · video wallpapers, etc. |
| Widgy | United States | ~26k | Custom (layers) · clock · weather · health · countdown · Scriptable integration | Widget creation is the focus | Pro — layer limit · export · data sources |
| Color Widgets | United States | ~11k | Photo · clock · weather · countdown · battery · calendar | Icons · wallpapers · bulk theme apply | Premium — all templates · theme packs |
| Widgify | China | ~5.7k | Live wallpaper · audio · StandBy · clock-style | Icons · static wallpapers | Pro — video/audio · full StandBy assets |
| Oshibana | Japan | ~13k | Oshi images · anniversary countdown · live wallpaper · oshi calendar | Records · merch · schedule · oshi-katsu core app | Premium — ad removal · extra widgets, etc. |
| Fan Coffret | Japan | — | 16 types shipped (anniversary · clock · image · Music · YouTube, etc.) + 20 in preparation | Sticker journal · mood · TODO · ICS · Oshi Color Hunt (core app) | Core features free · optional ad removal, etc. |
Full app list (detailed comparison)
| App | Origin | App Store ratings | Category | Records | Schedule | Widgets | Paid features | Notes |
|---|---|---|---|---|---|---|---|---|
| Fan Coffret | Japan | — | Fan-side records | ◎ | ○ | ○ | Core features free · optional ad removal, etc. | Sticker journal · photos · mood · anniversaries · TODO · ZIP/ICS · Oshi Color Hunt |
| Oshibana | Japan | ~13k | Fan-side records | ○ | ○ | ◎ | Premium (monthly/yearly) | Integrated oshi-katsu staple |
| Oshitasu | Japan | Ended | Fan-side · schedule | △ | ◎ | — | — (ended) | Ended 2024-09-12 · Recruit Ring |
| Oshikyun | Japan | Ended | Fan-side records | ○ | ◎ | △ | — (ended) | Ended 2026-06-30 · Sanrio |
| Shikaro | Japan | Ended | Fan-side records | — | ◎ | — | — (ended) | Ended 2023-06-30 · oshi calendar |
| Weverse | South Korea | ~72k | Oshi-side FC | — | △ | — | DM · membership · shop, etc. | BTS · SEVENTEEN · aespa, etc. |
| bubble | South Korea | Multiple apps | Oshi-side FC | — | — | — | Per-artist monthly | NCT · TWICE · IVE, etc. · paid DM |
| b.stage | South Korea | ~5k+ | Oshi-side FC | — | — | — | FC membership plans | G-DRAGON · EPIK HIGH, etc. |
| SHOWROOM | Japan | ~120k | Streaming | — | — | — | Paid gifts | Live · rankings · fan rooms |
| 17LIVE | Taiwan | ~88k | Streaming | — | — | — | Coins · gifts | Talents · influencers |
| Pococha | Japan | ~56k | Streaming | — | — | — | Coins · gifts | DeNA · streamer live |
| YouTube | United States | ~2M+ | Streaming | — | — | — | Premium · membership · SC | Live + archive · VTuber · idol |
| Niconico | Japan | ~100k+ | Streaming | — | — | — | Premium · gifts | VTuber · singing · comment culture |
| IRIAM | Japan | ~17k | Streaming | — | — | — | Coins · gifts | V-Liver · illustrated character |
| REALITY | Japan | ~5k+ | Streaming | — | — | — | Coins · gifts | V-Liver · avatar streaming |
| Widgetsmith | United States | ~140k | Widgets | △ | △ | ◎ | Premium sub | Clock/photo/weather · Lock Screen |
| iScreen | China | ~54k | Widgets | — | — | ◎ | Pro sub | Theme + icons + wallpaper |
| WidgetClub | China | ~46k+ | Widgets | △ | — | ◎ | Premium sub | Decoration-focused · oshi images |
| Widgy | United States | ~26k | Widgets | — | — | ◎ | Pro sub | Custom layers |
| Color Widgets | United States | ~11k | Widgets | △ | △ | ◎ | Premium sub | Templates · theme packs |
| Widgify | China | ~5.7k | Widgets | — | — | ◎ | Pro sub | Live wallpaper · audio |
| Google Calendar | United States | ~38k | Calendar | — | ◎ | — | Mostly free | Readable from Fan Coffret on device |
| TimeTree | Japan | ~1.03M | Calendar | — | ◎ | — | Premium plan | Shared schedules |
| Lifebear | Japan | ~320k | Calendar | △ | ◎ | — | Premium plan | Planner · diary |
Origin country and operator for each app/service
Oshi-katsu apps are not Japan-only. K-POP official fan clubs (Weverse, bubble, etc.) often come from South Korea; streaming platforms include US and Taiwan staples. Fan Coffret is a separate product run by a Japan-based development team.
"Origin country/region" is a guide to the operator's headquarters or where the service started. App Store developer country and legal entity names change — check each store listing for contractual or legal accuracy.
| Name | Origin country/region | Operator (overview) |
|---|---|---|
| Fan Coffret | Japan | THE LITERATURE THEATRE |
| Oshibana (Oshibana oshi-katsu app) | Japan | Booklista (App Store developer display) |
| Weverse | South Korea | HYBE |
| bubble (Dear U) | South Korea | Dear U Co., Ltd. |
| b.stage | South Korea | Dear U Co., Ltd. |
| YouTube | United States | |
| Niconico Live | Japan | Kadokawa Dwango (formerly dwango) |
| SHOWROOM | Japan | DeNA |
| 17LIVE | Taiwan | 17LIVE / 17 Media |
| Pococha | Japan | DeNA |
| IRIAM | Japan | IRIAM operator (Japan entity) |
| REALITY | Japan | REALITY Inc. |
| Widgetsmith | United States | Widgetsmith (US) |
| iScreen | China | China-based developer (popular in Japan · see App Store listing) |
| WidgetClub | China | China-based developer (popular in Japan · see App Store listing) |
| Widgy Widgets | United States | Widgy Studios |
| Color Widgets | United States | Icon Chameleon, etc. |
| Widgify | China | China-based developer (popular in Japan · see App Store listing) |
| Google Calendar | United States | |
| TimeTree | Japan | TimeTree Inc. |
| Lifebear | Japan | Lifebear Inc. |
| Apple Calendar (built-in) | United States | Apple |
| Oshikyun | Japan | Sanrio (service ended) |
| Shikaro | Japan | NTT Solmare (service ended) |
| Oshitasu | Japan | Recruit Co., Ltd. (Ring intrapreneurship program · service ended 2024-09-12) |
Paid features by service (overview)
Oshi-katsu apps, streaming, and official FC differ greatly in free vs paid design. Fan Coffret keeps core recording free; Weverse and bubble center on paid membership/DM; streaming apps mainly monetize gifts and tips.
Pricing, plan names, and free tiers are authoritative on each App Store page, official site, and in-app display. Below is an overview as of 2026-07-31 and may change without notice. See the official Fan Coffret LP FAQ (for guardians) for billing policy details.
Fan-side · records
| Name | Origin country/region | Free tier (overview) | Paid · optional |
|---|---|---|---|
| Fan Coffret | Japan | Oshi registration · records · calendar · widgets · ZIP/ICS import · Oshi Color Hunt, etc. | Optional — ad-removal sub · dev support gifts (consumable). No gacha · no paid registration cap |
| Oshibana | Japan | Basic oshi-katsu records · widgets · schedule (limits may apply) | Premium plan (monthly/yearly) — ad removal · extra widgets · feature expansion, etc. |
Oshi-side · official fan club
| Platform | Free tier (overview) | Paid · optional |
|---|---|---|
| Weverse | Join app · some post viewing · fan interaction | Digital Membership (per artist) · paid live · shop · tickets, etc. |
| bubble | App download · browse artist list | Per-artist monthly sub (paid DM) — agency-specific apps |
| b.stage | Join app · some content | FC membership (per artist/IP) — member streams · ticket presales · member-only posts |
Streaming
| Platform | Free tier (overview) | Paid · optional |
|---|---|---|
| YouTube | Subscribe · watch live/archives | YouTube Premium · channel membership · Super Chat / Super Thanks |
| Niconico Live | Watch live/archives (account required) | Premium membership · gifts · paid programs (title-dependent) |
| SHOWROOM | Watch streams · comments | Paid gifts (SG/NG, etc.) · event voting · fan rooms |
| 17LIVE | Watch streams | Buy coins → send gifts · ranking support |
| Pococha | Watch streams · comments | Coins/gifts · paid events (streamer-dependent) |
| IRIAM | Watch V-Liver streams | Coins/gifts · events (streamer/operator-dependent) |
| REALITY | Watch V-Liver streams | Coins/gifts · avatars/items (in-app purchases possible) |
Widgets · calendar
| App | Free tier (overview) | Paid · optional |
|---|---|---|
| Widgetsmith | Basic widgets · some templates | Widgetsmith Premium (sub) — extra widgets · themes |
| iScreen | Some themes/widgets | Pro sub — all themes · extra widgets |
| WidgetClub | Some widgets/wallpapers | Premium sub — full asset unlock |
| Widgy | Widget creation (limits may apply) | Widgy Pro — extra layers · export, etc. |
| Color Widgets | Some templates | Premium sub — all templates · themes |
| Widgify | Some wallpapers/widgets | Pro sub — live wallpaper · audio, etc. |
| Google Calendar | Create events · sync · share | Mostly free (Google Workspace separate) |
| TimeTree | Shared calendar · create events | Premium — ad removal · extra features (plan-dependent) |
| Lifebear | Basic calendar · planner · diary | Premium — ad removal · extra designs/features |
| Apple Calendar (built-in) | Standard iOS scheduling | Free (iCloud storage within Apple ID limits) |
Paid features by service (details)
Fan Coffret
- Core oshi records and registration need no paid unlock (no cap on registration or on-device record count)
- Optional — ad-removal subscription, consumable dev support gifts (App Store listing authoritative)
- No gacha-style random purchases or paid registration count increases
Oshibana (Oshibana oshi-katsu app)
- Basic features available free
- Premium plan (monthly/yearly) — ad removal · widget expansion · extra features (in-app purchase listing authoritative)
Weverse
- App free — join artist communities
- Digital Membership · paid live streams · merch shop · ticket sales, etc. (per artist/product)
bubble (Dear U)
- Main feature is paid DM with individual artists — monthly sub (price varies by artist/plan)
- Separate bubble apps by agency (e.g. JYP · SM)
b.stage
- FC membership per artist/IP — member content · live · ticket presales
- Free viewing scope varies by community/plan
YouTube
- Watching and subscribing is free
- YouTube Premium (ad-free, etc.) · channel membership · Super Chat / Super Thanks
Niconico Live
- Free to watch (Niconico account required)
- Premium membership · gifts · paid programs (title/stream-dependent)
SHOWROOM
- Free to watch streams
- Support oshi with paid gifts (SG/NG, etc.) — event voting · rankings
17LIVE
- Free to watch
- Buy coins → send gifts · support streamers
Pococha
- Free to watch and comment
- Coins/gifts · streamer-run paid events (when available)
IRIAM
- Free to watch V-Liver streams
- Coins/gifts · events (operator/streamer-dependent)
REALITY
- Free to watch V-Liver streams
- Coins/gifts · avatar/item in-app purchases (when available)
Widgetsmith
- Basic widgets free
- Widgetsmith Premium — extra sizes · themes · photo widgets, etc.
iScreen
- Some themes/widgets free
- Pro sub — all assets · extra widgets
WidgetClub
- Some decoration assets free
- Premium sub — full wallpapers/widgets/icons
Widgy Widgets
- Basic widget creation free (limits may apply)
- Widgy Pro — layer count · data sources, etc.
Color Widgets
- Some templates free
- Premium sub — all templates · theme packs
Widgify
- Some wallpapers/widgets free
- Pro sub — live wallpaper · audio widgets, etc.
Google Calendar
- Personal scheduling mostly free
- Google Workspace (business) priced separately
TimeTree
- Shared calendar and event creation free
- Premium plan — ad removal · extra features (official listing authoritative)
Lifebear
- Basic calendar · planner · diary free
- Premium — ad removal · extra designs/backup, etc.
Apple Calendar (built-in)
- iOS standard — no extra purchase
- Apple storage plan needed if iCloud storage exceeded
FAQ
Do oshi-katsu apps have paid features?
It varies widely by service. Fan Coffret keeps core oshi records and registration free, with optional ad-removal subscription and consumable dev support gifts (no gacha or paid registration caps). Oshibana has a Premium plan (monthly/yearly). Weverse · bubble · b.stage center on paid membership · DM · member content. YouTube · SHOWROOM · 17LIVE, etc. are free to watch; membership · gifts · tips are optional. Widgetsmith and similar decoration apps commonly offer Premium subs. See Paid features in this guide and each App Store page. For Fan Coffret pricing, see the official LP FAQ (pricing).
Can I use it beyond oshi-katsu? Partners and family?
Fan Coffret lets you register oshi/idols plus partners, family (including children), favorite products, teams, original characters, target universities, and more as the same favorite card with no registration cap. Oshibana (oshi-katsu app) is UI-focused on oshi-katsu; partners and family are often registered via oshi slots. Weverse is for joining official fan clubs, not for registering personal partners or family.
Couple anniversary apps vs oshi-katsu record apps — what is the difference?
To count relationship start, 100 days, and anniversaries as a couple, apps like Koishite, The Couple, SumOne, and COUPPLY fit — often invite-only (closed), two-only, one-partner designs with no oshi or fictional character registration. To register multiple oshi and keep fiction/OC anniversaries, Fan Coffret fits better (partners and family in the same app). Anniversary Today sits in between for both oshi-katsu and partner dates. See Anniversary comparison for details.
Which apps record oshi-katsu?
For oshi-katsu records, Oshibana (~13k App Store ratings) and Fan Coffret are commonly used. Fan Coffret is an iOS fan-side app where you register any oshi or favorite (not limited to people). You can import ZIP exported from Oshibana yourself. Weverse and bubble are oshi-side official communities — different purpose from personal record apps.
Which oshi-katsu app do you recommend?
Choose by use case. Personal records and anniversaries: Fan Coffret or Oshibana. Official oshi info and fan community: Weverse or b.stage. Streaming: YouTube · Niconico Live (VTuber), SHOWROOM (idol), IRIAM · REALITY (V-focused), 17LIVE · Pococha. Home Screen decoration: Widgetsmith · iScreen · WidgetClub. Using multiple apps by use case is common.
What replaces Oshikyun?
Oshikyun ended June 30, 2026. For color-coded calendar · categories · daily logs, Fan Coffret (import Oshikyun ICS · Memory Room) or Oshibana (~13k ratings) are candidates.
What replaces Oshitasu?
Oshitasu ended September 12, 2024. Recruit's Ring-born oshi-katsu calendar aggregated appearances · tickets · SNS with push notifications. Alternatives: Fan Coffret (ICS subscription · calendar · Memory Room) or Oshibana (~13k ratings) for oshi schedule.
What replaces Shikaro?
Shikaro ended June 30, 2023. For calendar management of oshi appearances and events: Fan Coffret (ICS subscription · calendar) or Oshibana (oshi schedule). Public ICS calendars can be subscribed and imported in Fan Coffret.
What is the difference between Weverse and Fan Coffret?
Weverse is an official fan club run by artists and agencies — fans join per oshi for official posts and community. Fan Coffret is a personal app where fans freely register oshi and favorites to record — not an oshi-side community service. You can use both: Weverse for community, Fan Coffret for personal oshi-katsu records.
What apps can replace Oshibana (oshi-katsu app)?
If you want balance of records · widgets · schedule, Fan Coffret is one candidate. Import ZIP exported from Oshibana yourself. For decoration only: WidgetClub · iScreen · Widgetsmith · Widgy · Color Widgets and similar apps with 5,000+ ratings. Fan Coffret is not the official successor or migration destination of Oshibana.
See the official landing page for Fan Coffret details.