Unmetronome
All-in-one for music learners.
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The all-in-one companion for music learners. Listen, transcribe, annotate, and play — everything on one device. One-time purchase, no subscriptions.
Listen & slow down:
- Slow songs down and change keys without losing quality
- On-device stem separation: vocals, drums, instruments
- Spectrogram view to aid chord and solo transcription
- Audio freeze for difficult harmony
- Detect non-standard tuning and convert to standard
- Markers and quick-jump play-head
Read & annotate scores:
- View PDF and image scores
- Freehand ink, highlights, and text annotations
- Save and share annotated scores
Transcribe & sequence:
- Multi-track step sequencer with rhythm and melodic voices
- Multi-voice editing with per-voice mute, solo, and volume
- Selection editing across voices and measures: copy, move, delete
- Chord input with comping patterns
- Rich playing articulations
- Auto-save and auto-backup
- Export editable song files or playable audio
Train your ear:
- Solfege singing of melodies
- Movable do or fixed do
Practice with confidence:
- Metronome with subdivisions, swing, polyrhythm, tap tempo
- Record the metronome with your playing
- Practice statistics and streaks
- Presets and playlists
- Tuner with guitar and bass modes, real-time pitch detection
Play & compose:
- Multi-touch polyphonic keyboard
- Custom instrument import (SoundFont)
- MIDI keyboard input
Make it yours:
- Multiple themes to match your mood
Built by a group of music lovers who longed for a comprehensive music companion. We listen carefully to feedback and continuously improve — please share your thoughts.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
- NEW: Multi-voice editing with independent mute / solo / volume per voice
- NEW: Selection editing to copy / move / delete notes across voices and measures
- NEW: Score viewer for PDF / image scores with freehand ink, text annotations, and sharing
- NEW: More playing articulations
- NEW: Custom instrument import (SoundFont)
- NEW: MIDI keyboard input
The developer, Zhang Dai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Zhang Dai
- Size
- 205.7 MB
- Category
- Music
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
English and 23 more
- English, Bengali, Dutch, Finnish, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Mongolian, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Tamil, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro (Upgrade) USD 5.99
- Pro (One-time Purchase) USD 9.99
- Practice (One-time Purchase) USD 4.99
- Copyright
- © 2026 Zhang Dai
