JazzEar vs ChordDeck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JazzEar
Enhance your jazz chord progression recognition with diverse exercises. Study curated progressions, practice random sequences, and tackle challenges inspired by real jazz tunes. Track your progress and compete with friends on daily songs.
- Hundreds of curated chord progressions
- Randomly generated chord sequences
- Progressions inspired by real jazz tunes
- Daily song challenges
- Streak and performance statistics
Read full descriptionHide full description
Improve your recognition of jazz progressions with a variety of exercises and features: - Study from hundreds of hand-curated chord progressions from easy to difficult, covering topics such as diatonic movements, diminished passing chords, modulations, and more. - Practice randomly generated chords or 2-5 movements to test difficult intervals and modulations. - Try progressions inspired by real jazz tunes, with options to tune the difficulty to your level. - Make your best attempt at the "daily song" and compare results with your friends! - Stats to track your streaks and how well you performed at each exercise. Aim for fewer mistakes, fewer listens, and faster completion.
ChordDeck
This app provides jazz chord flashcards for musicians to practice chord recall. It displays chord symbols, tones, formulas, and keyboard highlights, with audio playback. Users can mark difficult cards for later review.
- Practice jazz chord qualities
- Circle-of-fourths or random root order
- Continuous or one-pass practice sessions
- View chord tones, formulas, and keyboard highlights
- Built-in audio playback
- Mark and review difficult cards
- Local storage for settings and marked cards
Read full descriptionHide full description
ChordDeck is a compact flashcard app for practicing jazz chord recall. Choose the roots and chord qualities you want to drill, then move through a focused deck one card at a time. Each card starts with a chord symbol so you can recall the answer mentally or on your instrument before revealing the details. Reveal a card to check the chord tones, a short formula, a compact piano keyboard highlight, and built-in audio playback. Mark difficult cards during practice and review them again later from the first screen. ChordDeck is designed for musicians who already know basic chord concepts and want a fast, repeatable way to build fluency. It keeps practice visual and direct instead of turning each session into a lesson page. Features: - Practice common jazz chord qualities across selected roots. - Follow circle-of-fourths root order or use random card order. - Choose one-pass sessions or continuous practice. - Reveal chord tones, formulas, and compact keyboard highlights. - Hear chord tones followed by the full chord. - Mark difficult cards and review them in a focused deck. - Use swipe navigation, previous and next controls, and timed autoplay. - Keep practice settings and marked cards stored locally on your device. ChordDeck is useful for jazz students, pianists, guitarists, bassists, arrangers, and other musicians who want quicker recognition of chord symbols, tones, and formulas.
Screenshots
Verdict
The clearest difference is price: JazzEar at Free against ChordDeck's $0.99. ChordDeck's advantage is in-app purchases (none vs 1). On rating, ratings volume, update cadence and ads 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
JazzEar is free to download; ChordDeck costs $0.99 up front. JazzEar sells 1 one-off in-app purchase. ChordDeck asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for JazzEar against 5.0 for ChordDeck. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
JazzEar ships an update every 4 days, ChordDeck weekly. Both last shipped on October 28, 2026.
| Parameter | JazzEar | ChordDeck |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Cohn | Shinhye Lee |
In-app purchases
JazzEar
- Full Access$6.99
ChordDeck
No in-app purchases









