Comparison

Jazz Progression Trainer vs Chord Progression Lab

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Jazz Progression Trainer

Features
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Jazz Progression Trainer is a practice tool designed for jazz musicians who want to internalize chord progressions by ear. Play along with a full rhythm section Listen to a real piano, walking bass, and drums as you practice. Each progression is performed at your chosen tempo, looping continuously so you can focus on your instrument. Progressions included Major II-V-I Minor II-V-I Jazz Blues (12-bar) Minor Blues (12-bar) Rhythm Changes (AABA, 32-bar) All 12 keys Transpose any progression instantly to any key. Build fluency across the entire harmonic universe. Adjustable tempo Set the BPM anywhere from 60 to 300. Start slow, build confidence, then push the speed. Visual chord guide The current chord is highlighted on screen as the progression plays, so you can always see where you are in the form. Whether you're a beginner learning your first turnaround or an advanced player drilling changes at 240 BPM, Jazz Progression Trainer keeps up with you.

About

Chord Progression Lab

Features
Currently charting
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Chord Progression Lab turns music theory into a sandbox. Pick a key. Pick a style. Listen. Tweak. Export. That's the whole loop β€” and it's surprisingly addictive whether you're a songwriter looking for your next progression, a producer hunting for a starting MIDI, a music student studying voice leading, or just a curious listener who wants to know what a Phrygian dominant actually sounds like. 25+ music-theory approaches, from familiar to far-out: β€’ Pop, Doo-Wop, Pachelbel's Canon, Circle of Fifths β€’ 12-Bar Blues and Jazz β€’ Rock and Punk power-chord progressions β€’ Epic Minor and Andalusian cadences β€’ Indian Raga (Bhairav), Arabic Maqam (Hijaz), East Asian Gōng pentatonic β€’ Japanese Hirajōshi, Indonesian Gamelan (Slendro) β€’ Klezmer Freygish, Flamenco Phrygian, Celtic Mixolydian, Slavic minor β€’ Bulgarian 7/8 Balkan, West African Highlife β€’ Bossa Nova, Reggae, Hawaiian slack key β€’ Avant-Garde quartal stacks and tone clusters All 12 keys. Transpose any progression β€” instantly. Dissonance dial. Great for ear-training, jazz studies, or just hearing how a vanilla I–V–vi–IV mutates when you add tension. Tempo control. Drag from a slow 40 BPM crawl to a 200 BPM sprint. Each style starts at a tempo that fits the genre. See it as you hear it. A piano keyboard lights up with the active chord tones in real time, and the chord sequence scrolls along showing Roman numerals and the actual chord name in the current key. Export MIDI. One tap saves a standard MIDI file you can drop into any DAW β€” and the share sheet sends it anywhere: AirDrop, Files, email, Messages. No accounts. No ads. No tracking. No internet required. Everything runs on-device with a built-in synthesizer. Whether you're studying theory, writing a song, prototyping a beat, or just curious what a Bulgarian 7/8 progression sounds like β€” Chord Progression Lab gets you from idea to audio in two taps.

Screenshots

Jazz Progression Trainer3 screens
Chord Progression Lab2 screens

Verdict

The call

The clearest difference is chart position: Chord Progression Lab at #183 against Jazz Progression Trainer's unranked. Chord Progression Lab also leads on price ($0.99 vs $2.99). Jazz Progression Trainer's advantage is iOS requirement (16.4 vs 26.5). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Jazz Progression Trainer costs $2.99 and Chord Progression Lab $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences Β· 4 level
Jazz Progression Trainer versus Chord Progression Lab: the parameters behind the verdict, then further details
ParameterJazz Progression TrainerChord Progression Lab
Price$2.99$0.99 β€” better
Update frequencyEvery 6 monthsβ€”
AdsNoNo
In-app purchasesNoNo
Best chart rankβ€”#183 β€” better
DevicesiPhoneiPhone, iPad β€” better
Requires iOS16.4 β€” better26.5
Further details β€” not scored
Size28 MB2 MB
Age rating4+4+
Developertabito ozakiDavid Mickey

In-app purchases

None

Jazz Progression Trainer

No in-app purchases

None

Chord Progression Lab

No in-app purchases

Questions

Is Jazz Progression Trainer free?
Jazz Progression Trainer costs $2.99, with no in-app purchases.
Is Chord Progression Lab free?
Chord Progression Lab costs $0.99, with no in-app purchases.
Do Jazz Progression Trainer or Chord Progression Lab have ads?
Neither Jazz Progression Trainer nor Chord Progression Lab shows ads.

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