KeyJaan!
音樂
免費 · App 內購買
Your songs become the game.
KeyJaan! is a chord-progression rhythm game that analyzes songs from your own music library — right on your device. Pick a song, and its tempo, beats, bars and chord progression become a playable chart in seconds. No sheet music, no chart downloads.
■ Three ways to play
Plug in a MIDI keyboard and your real playing becomes the score
Use the microphone to play with a piano or your voice (experimental)
No instrument? Tap the beat and swipe the chords
■ Music theory scores points 7th chords, slash chords, modulations, voice leading — the more musical your playing, the higher the score. Harder songs multiply your points. Left hand rides the beat, right hand sings the melody.
■ The crowd goes wild Ten audience characters react to your playing in real time. Nail a 7th and they'll actually hear it.
■ Records that stack up Achievements, daily streaks, per-song best scores and rankings. Chase that S rank — it's reserved for near-perfect play.
■ 6 demo songs included Original demo tracks are bundled and pre-analyzed, so you can play the moment you download.
■ Private by design Analysis and scoring happen entirely on your device. Your songs never leave it. No data collection, no ads.
FREE: 6 demo songs + analyze up to 5 of your own songs, with a 7-day full-feature trial (1-minute mode stays available afterwards). KEYJAAN PRO (one-time purchase): unlimited analysis + all play lengths. No subscription.
Works with: MIDI keyboards (USB/Bluetooth) / your music library / audio files (mp3, m4a, wav and more) Note: DRM-protected streaming tracks (e.g. Apple Music subscription songs) cannot be analyzed.
評分與評論
- 此App未收到足夠的評分或評論以顯示概況。
開發者Mamiko Tsukamoto表明App的私隱慣例或包括下列資料的處理。詳情請參閲 開發者的私隱政策 。
不收集資料
開發者不會從此 App 收集任何資料。
輔助使用
開發者尚未表示此 App 支援哪些輔助使用功能。 進一步了解
資料
- 供應商
- Mamiko Tsukamoto
- 大小
- 93.9 MB
- 類別
- 音樂
- 相容性
須使用 iOS 17.0 或以上版本。
- iPhone
須使用 iOS 17.0 或以上版本。 - iPad
須使用 iPadOS 17.0 或以上版本。 - Mac
須使用 macOS 14.0 或以上版本。 - Apple Vision
須使用 visionOS 1.0 或以上版本。
- iPhone
- 語言
- 日文、英文
- 年齡分級
4+
- 4+
- App 內購買
是
- KeyJaan Pro USD 9.99
- 版權
- © 2026 TrueMmedical Inc.