Jazz Progression Trainer vs Crank. Guitar Practice Log
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Jazz Progression Trainer
Read full descriptionHide full description
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.
Crank. Guitar Practice Log
Read full descriptionHide full description
Crank. is a practice log for guitarists. Pick an exercise, play it against the click, and log the fastest tempo you got through it clean. Week by week the number goes up, and you can see the day it happened. WHAT TO PRACTISE, ALREADY WRITTEN ⢠116 exercises across guitar, bass, drums, piano, strings and winds ⢠Written rhythm tab for every guitar exercise, on screen while you play ⢠Tap Hear it and the loop plays back at the tempo you set ⢠Or write your own exercise in ten seconds and track that instead PRACTISE LIKE A WORKOUT ⢠A session is a list of exercises, and each one keeps a table of rounds ⢠Every round records the tempo, the time and how it felt ⢠Last session's tempos are already filled in, so you finish a round and move up ⢠Turn the phone sideways to keep the tab open while you play SEE THE NUMBER MOVE ⢠Every exercise gets its own chart with your target line on it ⢠Pass the target and the exercise goes into OVERDRIVE ⢠Records board: fastest exercises, biggest jumps, longest sessions ⢠Practice heatmap, streaks, weekly stats, and ten ranks as the hours stack up FREE METRONOME AND TUNER ⢠Precise metronome with subdivisions, sounds and tap tempo ⢠Chromatic tuner, one tap away ⢠Both free, forever Dark interface built for late nights. Start practising straight away, with no account. Sign in free when you want your log on every device. Finish a session without a signal and it waits for you, then syncs when you are back. FREE: 5 tracked exercises, practice sessions, progress charts, metronome, tuner, daily reminder. CRANK PRO: unlimited exercises, 3 deadline goals, full stats and highlights, collections, smart reminders, weekly review, circles of up to 10 friends, video recording. Track the grind. Watch the number go up. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Crank. Guitar Practice Log at Free against Jazz Progression Trainer's $2.99. Crank. Guitar Practice Log also leads on update cadence (every 6 weeks vs every 6 months). Jazz Progression Trainer's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Crank. Guitar Practice Log is free to download; Jazz Progression Trainer costs $2.99 up front. Crank. Guitar Practice Log sells 2 in-app purchases, starting at $3.99 per month. Jazz Progression Trainer asks for nothing beyond the download.
Jazz Progression Trainer ships an update every 6 months, Crank. Guitar Practice Log every 6 weeks. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | Jazz Progression Trainer | Crank. Guitar Practice Log |
|---|---|---|
| Price | $2.99 | Free ā better |
| Update frequency | Every 6 months | Every 6 weeks ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 | 16.4 |
| Further details ā not scored | ||
| Size | 28 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | tabito ozaki | Ho Sing Chan |
In-app purchases
Jazz Progression Trainer
No in-app purchases
Crank. Guitar Practice Log
- Crank. Pro$3.991 Month
- Crank. Pro$29.991 Year
Questions
Is Jazz Progression Trainer free?
Is Crank. Guitar Practice Log free?
Do Jazz Progression Trainer or Crank. Guitar Practice Log have ads?
Which is updated more often, Jazz Progression Trainer or Crank. Guitar Practice Log?
Other comparisons















