Jazz Time Trainer vs Mr. Drum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jazz Time Trainer
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Jazz Time Trainer is a focused metronome and inner-pulse trainer built for jazz musicians, drummers, students, and serious practice sessions. This is not a generic click app. JTT is designed around the way musicians actually train time: internal pulse, click independence, 2 & 4 practice, gap-click work, odd meters, grouping, swing ride practice, subdivisions, and clean visual feedback. Key features: - 20-400 BPM tempo range - Stable high-output click engine - All Beats, 2 & 4, 1 Only, 4 Only - Gap Click and Random Drop timing challenges - Common time signatures for jazz practice - Odd meter and grouping concepts for modern jazz training - Subdivision practice for 8ths, 16ths, and triplet feels - Customizable beat accents and mute states - Multiple click sound profiles, including voice count mode - Swing Ride practice with Center, Ahead, and Layback feel options - Memory slots for saving practice setups - Minimal dark interface designed for practice, not distraction - Media mix mode for practicing while playing along with other audio JTT is made for musicians who care about time feel, not just BPM. No ads.
Mr. Drum
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Mr. Drum is a rhythm trainer for players who want to know how their timing actually feels. Play along to studio-quality drum patterns, and Mr. Drum measures where each of your hits lands against the beat - ahead of it (Push), behind it (Layback), or right on it (Center). PRACTICE TO REAL PATTERNS - 4-beat, 8-beat, 16-beat, swing and Latin styles, each with multiple variations - Tempo from a slow practice crawl up to full speed, with tap tempo - A count-in that follows the actual time signature of the pattern (3/4, 6/8, 12/8 and more) - Per-instrument mixer so you can pull the kick up or take the ride down - Haptic metronome and a visual flasher for practicing quietly SEE YOUR TIMING, NOT JUST HEAR IT - Play along with the microphone, or tap along on screen - both are analyzed the same way - Every session gives you an average offset in milliseconds, how consistent you were, and which beats you rush or drag the most - Tempo drift is separated from feel, so "playing behind the beat" is never confused with "slowing down" - Your Groove Profile builds up over time from your practice history TIME FEEL (PRO) Shift snare, ride, toms and percussion ahead of or behind the beat independently, and hear how a groove changes when the parts do not sit in the same place. YOUR AUDIO STAYS YOURS Mr. Drum listens through the microphone, but audio is never recorded or saved. Only the timing of each hit is kept, and it never leaves your device. There is no account, no sign-in, and no server.
Screenshots
Verdict
The clearest difference is in-app purchases: Jazz Time Trainer at none against Mr. Drum's 1. Jazz Time Trainer also leads on ads (none vs shown). Mr. Drum's advantage is update cadence (every 2 days vs every 4 days). On price, device support and iOS requirement 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
Both are free to download. Mr. Drum sells 1 one-off in-app purchase. Jazz Time Trainer asks for nothing beyond the download.
Jazz Time Trainer ships an update every 4 days, Mr. Drum every 2 days. Both last shipped on October 8, 2026.
| Parameter | Jazz Time Trainer | Mr. Drum |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 19 MB | 47 MB |
| Age rating | 4+ | 12+ |
| Developer | Sangwoo Shin | TAEHEE JANG |
In-app purchases
Jazz Time Trainer
No in-app purchases
Mr. Drum
- Pro Upgrade$5.99
Questions
Is Jazz Time Trainer free?
Is Mr. Drum free?
Do Jazz Time Trainer or Mr. Drum have ads?
Which is updated more often, Jazz Time Trainer or Mr. Drum?
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