Oshi Island vs CallStudio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oshi Island
Create and display custom pixel art characters on your iPhone screen. Bring your favorite idols, anime characters, or VTubers to life with animation and custom dialogues, visible through Live Activities.
- Pixel Art Editor
- Photo to Pixel Art conversion
- Animation Creator
- Live Activity Display
- Custom Dialogues
- Share creations via AirDrop
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Oshi Island brings your favorite character to life on your iPhone screen! Create adorable pixel art of your "oshi" (favorite idol, anime character, or VTuber) and keep them always visible on your screen. KEY FEATURES - Pixel Art Editor: Draw cute pixel art characters with an intuitive touch interface - Photo to Pixel Art: Automatically convert any photo into retro pixel art - Animation Creator: Add movement to your characters with simple frame-by-frame animation - Live Activity Display: Show your creation with Live Activities - Custom Dialogues: Add messages from your favorite character - Share via AirDrop: Send your pixel art creations to friends - Place two oshi on the left and right of the Dynamic Island (Super Oshi Plan) - Automatic iCloud backup of your oshi (Super Oshi Plan) - Change the Home Screen app icon, choosing from 10 designs (Super Oshi Plan) - Change the app's look: Member Color, Volleyball Court and more (Super Oshi Plan) PERFECT FOR - K-pop, J-pop, and idol fans who want their bias always with them - Anime and VTuber enthusiasts - Pixel art and retro gaming lovers - Anyone who wants to customize their iPhone in a fun, unique way - Creative souls who enjoy drawing and digital art HOW TO USE 1. Create pixel art in the editor (or convert from a photo) 2. Add animation frames to bring your character to life 3. Tap "Set to Live Activity" 4. Your oshi is now always with you! Transform your iPhone into a canvas for your fandom. With Oshi Island, your favorite character is just a glance away, cheering you on throughout your day! Available on iPhone 14 Pro and later with Live Activities support. SUBSCRIPTION INFORMATION - Super Oshi Plan (Weekly): Auto-renews weekly - Lifetime Plan: One-time purchase for permanent access - You can cancel your subscription at any time Terms of Use: https://tsuzukit.com/oshiisland/terms.html Privacy Policy: https://tsuzukit.com/oshiisland/privacy.html
CallStudio
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CallStudioは、ライブや楽曲に合わせたコールを作成・共有・再生できるアプリです。 動画や音声に合わせてコールを同期表示し、見やすいUIで確認できます。投稿されたコールを検索したり、気になるアーティスト・アカウント・コールをお気に入り登録したりして、自分だけのコール環境を作れます。 主な機能: ・コールデータの作成、編集、投稿 ・動画や音声に合わせたコールの同期表示 ・曲、アーティスト、投稿者からの検索 ・お気に入り登録によるコール、アーティスト、投稿者の管理 ・更新履歴や評価機能によるコール情報の確認 ライブ前の練習や現場での確認、コール文化の共有をもっと手軽にするためのアプリです。 【利用規約】 本アプリの利用規約は以下のURLでご確認いただけます: https://callstudio.izumy.me/other/team-of-use 【プライバシーポリシー】 プライバシーポリシーは以下のURLでご確認いただけます: https://callstudio.izumy.me/other/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: CallStudio at none against Oshi Island's 2. CallStudio also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.0). On price, update cadence and device support 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
Both are free to download. Oshi Island sells 2 in-app purchases, starting at $1.99 per 7 days. CallStudio asks for nothing beyond the download.
Oshi Island ships an update every 3 days, CallStudio every 4 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Oshi Island | CallStudio |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 43 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Tsudukihashi | Imaizumi Kei |
In-app purchases
Oshi Island
- Super Oshi Plan$1.997 Days
- Lifetime Premium$19.99
CallStudio
No in-app purchases









