RhythmForge vs MetroEye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RhythmForge
This app provides real-time feedback on your timing accuracy by listening to your playing through the microphone. It offers practice modes, scored challenges, and learning tools to help musicians improve their rhythm and precision.
- Real-time timing feedback in milliseconds
- Scored rhythm challenges with tiers
- Learning mode to master complex rhythms
- Extensive library of rudiments and world rhythms
- Tempo ramp and silent bar features
- Per-device latency calibration
- Pattern builder for custom rhythms (Pro)
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Most metronomes just count. RhythmForge listens back. Play along to the click and the app hears every stroke through the microphone. You see each hit land early or late, by how many milliseconds, and after the session where your timing held and where it drifted. Rushing or dragging, you'll know which. HOW IT WORKS Practice: turn on listening, play, and watch the timeline. The metronome plays one subdivision, you play another: eighths over a quarter click, triplets, offbeats. Challenges: pick one, set your tempo, play. Every beat is scored across six tiers, from Perfect (within 10 ms) to Missed. Consecutive Perfects build a combo. Your best score is kept with the tempo you set it at. Learn: can't play a challenge yet? Learn plays the notes the click doesn't cover, steps back as you lock in, and ends once you've played enough clean bars. Then start the challenge for real. Learn is free, costs no energy and saves nothing. 60+ challenges: rudiments (singles, doubles, paradiddles, rolls, gallops), grooves, world rhythms (tresillo, son clave, rumba, cáscara, mozambique, bossa nova, samba, baião, bembé), compound and odd meters, tempo ramps and silent bars. WHAT YOU GET • Live feedback on every stroke, measured in milliseconds • Rushing and dragging per session, timing spread, beat distribution • Assist: playing a different part than the click and lose it for two bars? The click steps back and your notes play until you're back. Those bars stay out of your accuracy • Tempo ramp and ghost measures (silent bars, the clock keeps running) • Per-device latency calibration, with AirPods drift corrected as you play • Works with a practice pad, snare, hand percussion, claves, djembe • 20 to 360 BPM, every standard subdivision, accents, odd meters • Hold the tempo to type it, tap it, or slide a ruler • Dark design, true black for OLED FREE • The full metronome, tempo ramp and ghost measures included • Every click sound • Unlimited practice with live feedback and every analysis screen, nothing blurred • Learn, on every challenge • Every challenge playable, nothing locked: 6 minutes of challenge time a day, refilling as the day goes, four times faster while you practice. Out of time, any challenge still gives you a free 25-second run • Your last 7 sessions RHYTHMFORGE PRO Try it free for 7 days: • Unlimited challenge time, no meter • Pattern builder: tap in your own rhythms, loop them, score them • Triplet and sixteenth targets over any click, plus per-beat patterns • Full session history WHO IT'S FOR Drummers and percussionists practicing on a pad, a snare or hand drums. Guitarists, bassists and producers who want tighter time. Students and teachers. It isn't a drum-kit transcriber: it doesn't tell toms from cymbals. It grades your time, not your kit. Privacy: your audio never leaves the phone. Timing detection runs on-device. Analytics are anonymous. Requires iOS 17 or later. Microphone access is needed for timing feedback. Terms of Service: https://rhythmforge.app/terms
MetroEye
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MetroEye is a metronome you can see. An eye at the center of the screen follows every beat and blinks on the downbeat — lock onto the timing with your eyes, not just your ears. ■ Latency offset — for players in headphones The click you hear is never exactly where the app thinks it is: output latency and touch delay push it off by a fixed amount. MetroEye lets you dial that out in 10 ms steps, right on the play screen, while the metronome is still running. Nudge − or + until the click sits where your ear expects it. ■ Two ways to start · Current Tempo — tap to set any speed on the spot · Preset Tempo — play along to a saved tempo sequence ■ Preset sequences Group several sections (BPM + time signature) into one preset. While playing, a TAP switches to the next section at the end of the bar. ■ Play screen TAP and STOP sit one above the other at the same size, so you never hunt for a button mid-take. STOP leaves the screen where it is — press START to resume at the same tempo, or just tap four beats to set a new one. ■ Fine control · Time signatures: 2/4, 3/4, 4/4, 5/4, 6/8, 7/4 · Subdivisions: quarter, eighth, triplet, sixteenth · Volume ■ More · 11 languages, auto-selected · Fully offline · Free · No ads · No sign-up See the beat with MetroEye.
Screenshots
Verdict
The clearest difference is in-app purchases: MetroEye at none against RhythmForge's 3. MetroEye also leads on update cadence (every 3 days vs fortnightly). On price, ads, 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. RhythmForge sells 3 in-app purchases, starting at $4.99 per month. MetroEye asks for nothing beyond the download.
RhythmForge ships an update fortnightly, MetroEye every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | RhythmForge | MetroEye |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 31 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Florian Preknya | DOSEONG KANG |
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
MetroEye
No in-app purchases









