RhythmForge vs Mr. Drum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RhythmForge
This app listens to your playing in real time, scoring your timing accuracy across multiple tiers. It provides detailed analysis of your performance, helping you identify and improve areas where you rush or drag. With numerous built-in challenges and practice modes, it acts as a personal coach for musicians.
- Real-time onset detection and scoring
- Six-tier accuracy grading
- Combo multipliers and personal best tracking
- Rushing/dragging analysis
- Timing precision scatter plot
- Per-device latency calibration
- 40+ built-in challenges
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Most metronomes just count. RhythmForge listens back. Play along to the beat and the app hears you in real time. Every hit is measured, every drift is shown, every session tells you exactly where your timing is strong and where it's not. Your phone becomes a practice coach. HOW IT WORKS Pick a challenge. Set your tempo. Play. RhythmForge scores every beat across six accuracy tiers — Perfect, Great, Good, Okay, Weak, Missed. Build combos with consecutive Perfects for bonus points. Beat your personal best. See exactly where you rushed or dragged. 63 built-in challenges spanning rudiments (singles, doubles, paradiddles, rolls, gallops), grooves, world rhythms (tresillo, son clave, rumba, cáscara, mozambique, bossa nova, samba, baião, bembé), compound and odd meters, and odd subdivisions. From first-week beginner to serious drummer. WHAT MAKES IT DIFFERENT • Real-time onset detection — the app hears your strokes and scores them instantly • Six-tier accuracy grading based on millisecond timing • Combo multipliers and personal-best tracking that make practice addictive • Rushing / dragging analysis per session — know your tendencies • Timing precision scatter plot and beat distribution charts • Per-device latency calibration that auto-corrects AirPods drift • Works with drum pads, snare, hand percussion, claves, djembe • 20–360 BPM, all standard subdivisions, accents • True dark-first design, optimized for OLED FREE FOREVER • Full metronome — every subdivision, tempo ramp, ghost measures • Every click sound • Unlimited free practice with live timing feedback • Every analysis screen, unblurred — distribution, precision, rushing and dragging • Every challenge in the library, playable. Nothing is locked • 6 minutes of challenge time a day, spent on whatever you choose • Your last 7 sessions No challenge is behind the subscription. What's metered is time: 6 minutes a day, topping back up as the day goes — four times faster while you're practicing. Run out and any challenge still gives you a free 25-second run, as many as you like. Tempo ramp and ghost measures are premium features in competing apps. Here they're free, forever. The metronome you'd pay for, included. RHYTHMFORGE PRO Unlock everything with a 7-day free trial: • Unlimited challenge time — the meter disappears • Pattern builder — create your own rhythms, loop them, score them • Triplet and sixteenth targets — play any subdivision over any click • Per-beat pattern editing • Full session history, unlimited FOR WHO Drummers. Percussionists. Guitarists who play rhythmically. Music students. Teachers. Anyone who knows that timing is the foundation of everything musical — and wants to actually measure where theirs stands. Privacy: RhythmForge never uploads your audio. All timing detection runs on-device. Analytics are anonymous and aggregated. Requires iOS 17 or later. Microphone permission required for timing feedback. Terms of Service: https://rhythmforge.app/terms
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 ads: RhythmForge at none against Mr. Drum's shown. Mr. Drum's advantage is update cadence (every 2 days vs fortnightly) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support 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. RhythmForge sells 3 in-app purchases, starting at $4.99 per month and Mr. Drum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
RhythmForge ships an update fortnightly, Mr. Drum every 2 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.
| Parameter | RhythmForge | Mr. Drum |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 47 MB |
| Age rating | 4+ | 12+ |
| Developer | Florian Preknya | TAEHEE JANG |
In-app purchases
RhythmForge
- RhythmForge PRO Monthly7 Days trial$4.991 Month
- RhythmForge PRO Annual7 Days trial$34.991 Year
- RhythmForge PRO Lifetime$74.99
Mr. Drum
- Pro Upgrade$5.99









