Comparison

Oshi Fan Log vs Stacky

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Oshi Fan Log

This app helps you organize and track all information about your favorite artists, idols, or characters. It automatically collects discography, news, releases, and merchandise, and provides calendar reminders for important dates. Personalize your experience and earn badges as you deepen your fandom.

Highlights
  • Register any favorite artist or character
  • Auto-collect discography, news, and merchandise
  • Anniversary and birthday calendar with notifications
  • Personalized daily digest notifications
  • Earn collectible badges and achievements
  • Home screen widget support
  • Siri and Spotlight integration
Features
Read full description

Your oshi’s schedule, anniversaries, goods, photos, notes, news, and videos — organized in one home per oshi. Oshi Fan Log is a fan activity manager for idols, artists, K-pop groups, VTubers, actors, voice actors, athletes, and any other favorite you support. KEY FEATURES ▸ Schedule and calendar Keep live shows, streams, release dates, and your own plans together. ▸ Anniversary countdowns Track birthdays, debut dates, and the day you became a fan. Check the countdown in the app, widgets, and Apple Watch. ▸ Goods, photos, and personal notes Organize collections, wish lists, memories, and notes separately for each oshi. ▸ News, videos, and official links Jump to the latest information for a registered oshi without rebuilding the same searches every day. ▸ Pilgrimage map Save meaningful places and plan visits on a map. ▸ Same-oshi community Read and post anonymous short messages with people supporting the same oshi. Community surfaces include report, block, and delete-own-post controls. ▸ iPhone, iPad, Apple Watch, and widgets Keep important dates visible across your devices. PLANS • Free: register up to 2 oshi. • Premium: register up to 30 oshi and expand eligible limits. Monthly and yearly localized prices are shown before purchase. Premium is an auto-renewable subscription. Payment is charged to your Apple ID at confirmation and renews unless canceled at least 24 hours before the end of the current period. Manage or cancel it in your Apple ID subscription settings. No login is required. Photos, personal notes, schedules, and private oshi records stay on your device by default. If you choose to enable it in Data Protection, a complete backup is saved to your own private iCloud Drive area. Automatic backup is off by default, and Particles and Waves cannot receive or view the backup contents. Anonymous community posts and pilgrimage comments are stored on our server so they can be shared and moderated. This is an unofficial fan app. Rights to third-party content remain with their respective owners. Do not use the app for rights-infringing sale or distribution. Privacy Policy: https://www.particlesandwaves.org/en/oshi/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Stacky

Features
Read full description

習慣トラッカーなのに、「やめたい習慣」も管理できる。 禁煙・禁酒・間食…断ちたいことも記録して、数字で実感できるアプリです。 【こんな使い方ができます】 - 続けたい習慣 — 運動・読書・瞑想・早起きなど - やめたい習慣 — 禁煙・禁酒・間食・SNSの見すぎなど 【主な機能】 - チェックリスト — 今日やることをひと目で確認 - ストリーク — 連続達成・連続回避の日数を自動カウント - 統計グラフ — 週・月・年単位で達成率を可視化 - リマインダー通知 — 時間を指定してプッシュ通知でサポート - ホーム画面ウィジェット — ロック解除なしで今日の習慣を確認 - iCloud同期 — 複数デバイスで自動同期 【無料でできること】 習慣を最大5個まで無料で追加できます。広告表示あり。 【Stacky Pro(買い切り)】 一度のお支払いで、すべてのPro機能をずっとご利用いただけます。月額・年額の継続課金はありません。 - 習慣数 無制限 - 詳細統計・グラフ(月・年の過去データ閲覧) - 広告なし 小さな一歩を、大きな変化へ。

Screenshots

Oshi Fan Log4 screens
Stacky4 screens

Verdict

The call

The clearest difference is ads: Oshi Fan Log at none against Stacky's shown. Oshi Fan Log also leads on update cadence (every 2 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Oshi Fan Log sells 2 in-app purchases, starting at $0.49 per month and Stacky sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Oshi Fan Log ships an update every 2 days, Stacky every 3 weeks. The most recent releases landed on October 1, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 7 level
Oshi Fan Log versus Stacky: the parameters behind the verdict, then further details
ParameterOshi Fan LogStacky
PriceFreeFree
Rating4.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size37 MB15 MB
Age rating12+4+
DeveloperParticles and WavesSignet LLC

In-app purchases

2 purchases

Oshi Fan Log

Subscriptions2
  • プレミアムプラン(月額)14 Days trial$0.491 Month
  • Premium Plan (Yearly)14 Days trial$5.991 Year
1 purchases

Stacky

One-time1
  • Stacky プレミアム$0.49

Questions

Is Oshi Fan Log free?
Oshi Fan Log is free to download, with in-app purchases available.
Is Stacky free?
Stacky is free to download, with in-app purchases available.
Do Oshi Fan Log or Stacky have ads?
Stacky shows ads; Oshi Fan Log does not.
Which is updated more often, Oshi Fan Log or Stacky?
Oshi Fan Log ships an update every 2 days, and Stacky every 3 weeks. Most recently, Oshi Fan Log was updated on October 1, 2026 and Stacky on September 19, 2026.

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