Listener doesn't teach you how to play. It makes technical practise more focussed, and more fun, improving your overall playing.
Works with any piano through your iPhone microphone. Acoustic, digital, or keyboard — no MIDI cable or special hardware.
Every exercise is scored on note accuracy, speed control, eveness and togetherness — the metrics that matter for beautiful playing.
Detects and scores parallel octaves. Play with both hands or hands separately.
2,064 exercise patterns across all 12 keys, multiple octave ranges. It knows what you're playing so you focus on the instrument, not on the phone.
Progress matrix shows scores across all keys. See which exercises need developing, maintenance, or a refresh. Watch your scores improve over time.
Audio is processed entirely on-device. Nothing is uploaded. Your practise stays between you and your piano.
Open the app. Play. See your score and your feedback. That's it.
Tap start and play any scale, arpeggio, or dominant 7th. The app listens through your microphone.
In 'test mode', let listener prompt you for which scale to play. Progress to more difficult exercises as you master easier ones. Feedback every time.
See your accuracy, tempo, and evenness scores instantly. Drill into note-by-note detail with trend charts.
Start an unguided practise session, use test mode, or review your previous sessions from the home screen.
Minimal listening mode. Play when you're ready — the app stays out of the way.
In test mode, the app prompts you for what to play. If you pass, move on. If you don't, review and practise.
Session summary showing every exercise played, with scores and repetition counts.
Score table tracking accuracy, tempo, evenness, and togetherness across attempts.
Detailed analysis with note accuracy strip, tempo trend, and evenness charts.
Progress matrix — see your scores across all keys and exercise types at a glance.
Exercise stats sorted by best score, most played, or most recent. Track your journey.