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Jazz Guitar
Jazz Guitar is a practice companion for jazz guitarists. It listens to your playing through the microphone, checks what you played in real time, and tracks your progress — from finding notes on the neck to soloing over the changes.
What it does
Fretboard trainer
Hear or see a note, then play it on your guitar. The app detects the pitch in real time and tells you if you’re right. Work through the naturals first, then add sharps and flats, until you know every note across the neck. Spaced repetition keeps resurfacing the notes you find hardest, and a dashboard tracks your coverage and accuracy.
Scales & arpeggios
Play the ascending one-octave scale or arpeggio for a root and chord quality. Each note is checked by ear, in any position, and a full-neck diagram colours the chord tones so you can see the shape. Practice what you choose, or let the app review what you’re due.
Lines — solo over the changes
A backing band (walking bass and drums) loops a progression or tune you pick, in any key. In Targets mode the app prescribes the guide tone to land on in each bar; in Free mode it classifies every note you play as a chord tone, a tension, or a note to avoid. Headphones are recommended so the mic hears only your guitar.
Drop-2 voicing trainer
Learn and drill drop-2 chord voicings — the staple jazz-guitar voicing. Browse every inversion of maj7, 7, m7, m7♭5, dim7, and mMaj7 chords across three string sets and hear them played back (Learn), quiz yourself by playing the named voicing (Train), or comp your voicings in time over the backing band (Play-Along).
Ear trainer
The app plays an interval or a chord quality; you identify it by tapping the answer. The ear trainer is listening practice only — it doesn’t use the microphone or your guitar.
Tools & progress
A chromatic tuner and a metronome with a drum-kit voice round out the trainers. The Progress tab shows your current streak, an activity heatmap, accuracy trends, and a daily practice plan that targets exactly what you’re due to review.
Features
- Real-time pitch detection — no cables, just your guitar and the built-in microphone
- Fretboard, scales & arpeggios, soloing over the changes, drop-2 voicings, and ear training
- A backing band (walking bass and drums) to solo and comp over
- Spaced repetition and a progressive curriculum that unlocks scope as you improve
- Streaks, an activity heatmap, accuracy charts, and a daily practice plan
- Tuner and metronome tools
- iCloud sync across your devices, plus a JSON backup you can export
- English (B) or German (H) note names and an adjustable A4 reference pitch
- Works with acoustic and electric guitar
Free & Premium
Jazz Guitar is free to start, with no time limit: the Fretboard trainer, the Drop-2 voicing trainer (Learn and Train), the Tuner and Metronome, and your streak and practice history are all free.
A Premium subscription unlocks the full coach: the Scales & Arpeggios trainer, the Lines (solo over the changes) trainer, Drop-2 Play-Along, ear-training stats and spaced-repetition review, the daily practice plan, and long-term accuracy charts.
Premium is available as a monthly or annual subscription, each starting with a free trial. Current pricing is shown in the app before you subscribe, and subscriptions renew automatically until cancelled. You can manage, change, or cancel anytime in your Apple ID settings (Settings › your name › Subscriptions), or restore a previous purchase with Restore Purchases on the subscription screen.
How to get help
If you have a question or need help, send an email and I’ll get back to you.
Email supportFAQ
The app doesn’t hear my guitar
Play in a quiet room, hold the guitar near the phone’s microphone, and check that microphone permission is enabled in iOS Settings › Jazz Guitar.
The app detects the wrong note
Make sure your guitar is in tune (the built-in tuner helps), play closer to the microphone, and mute the strings you’re not playing. If everything reads consistently sharp or flat, check the A4 reference pitch in Settings.
Play-Along or Lines isn’t scoring me
Scoring in the play-along modes runs only when you’re wearing headphones — otherwise the microphone would hear the backing band as well as your guitar. Connect headphones and your playing will be graded.
Does the ear trainer use the microphone?
No. The ear trainer plays the sound and you tap your answer, so it needs no microphone and no guitar.
No sound when I tap the speaker icon
Check that your iPhone is not on silent mode and that the volume is turned up.
Will I lose my progress on a new phone?
No — if you’re signed into iCloud, your practice history syncs to your other devices automatically. You can also export a JSON backup from Settings › Data and import it elsewhere.
How do I manage, cancel, or restore my subscription?
Manage or cancel anytime in iOS Settings › your name › Subscriptions. To restore a subscription on a new device, tap Restore Purchases on the subscription screen.
Can I use German note names (H)?
Yes — switch between English (B) and German (H) naming in Settings › Note Names. It applies everywhere: prompts, chord names, and string labels.
How does pitch detection work?
The app analyzes the frequency of the sound from the built-in microphone in real time. No audio is recorded or stored.
Last updated: June 7, 2026