Comparison

Groove Lab Metronome vs HarmoniaMASTER

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

Head to head
About

Groove Lab Metronome

Create complex practice tracks with dynamic tempo changes and a groove-aware drum machine. Designed by musicians, this app offers a distraction-free experience for focused practice on any instrument.

Highlights
  • Multi-measure sequence builder
  • Tempo changes (accelerando, ritenuto)
  • Custom time signatures and beat groupings
  • Groove-aware drum kits
  • Background playback
  • Save and organize presets
Features
Read full description

Designed by professional orchestra musicians. Build practice tracks with mixed meter, tempo changes, and a drum machine that actually grooves without ads or distractions. PRACTICE ANY RHYTHM Build a multi-measure practice track in seconds. Chain together time signature changes, set accelerando or ritenuto with natural curves, and hit play. Groove Lab handles the complexity so you can focus on your instrument. A DRUM MACHINE THAT UNDERSTANDS MUSIC Choose from 8 sound profiles — from a clean click to funk, disco, and EDM drum kits. The drum machine knows strong and weak beats and plays with authentic groove in any grouping: 2+2+3, 3+2+2, or whatever your music demands. CLEAN AND FOCUSED No ads. No accounts. No social features. Just a beautifully designed metronome that gets out of your way. Dark interface built for stage, studio, and practice room. WORKS IN THE BACKGROUND Lock your screen or switch to ForScore, iReal Pro, or your sheet music reader. Groove Lab keeps playing. Use it as your always-on click track. FEATURES - Multi-measure sequence builder with repeat counts - Accelerando, ritenuto, and subito tempo changes - Custom time signatures and beat groupings - Per-beat subdivision control — accent, mute, or customize any hit - 8 sound profiles including groove-aware drum kits - Tap tempo with intelligent averaging - Count-in (1–5 measures) - Save and organize presets in folders - Share practice tracks as links with other musicians Built by musicians who use it every day.

About

HarmoniaMASTER

Features
Read full description

【Harmonia MASTER】ハルモニアマスターは、吹奏楽・合唱・アンサンブルのために設計された音楽ツールアプリです。 【主な機能】 ● チューナー マイクで音程をリアルタイム検出。セント単位でチューニングできます。 ● 純正律 / 平均律 対応ピアノ 12音それぞれのセントオフセットをフェーダーで調整。純正律の響きを学ぶのに最適です。 ● コード再生 主要コードをワンタップで再生。純正律と平均律の響きの違いを確認できます。 ● 基準ピッチ調整 A₄ = 415〜470Hzまで対応。

Screenshots

Groove Lab Metronome4 screens
HarmoniaMASTER3 screens

Verdict

The call

The clearest difference is update cadence: HarmoniaMASTER at every 5 days against Groove Lab Metronome's every 4 months. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Groove Lab Metronome costs $2.99 and HarmoniaMASTER $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Groove Lab Metronome ships an update every 4 months, HarmoniaMASTER every 5 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 7 level
Groove Lab Metronome versus HarmoniaMASTER: the parameters behind the verdict, then further details
ParameterGroove Lab MetronomeHarmoniaMASTER
Price$2.99$2.99
Positive reviews100.0% of reviews—
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperNicholas MahonMina Iwabuchi

In-app purchases

None

Groove Lab Metronome

No in-app purchases

None

HarmoniaMASTER

No in-app purchases

Questions

Is Groove Lab Metronome free?
Groove Lab Metronome costs $2.99, with no in-app purchases.
Is HarmoniaMASTER free?
HarmoniaMASTER costs $2.99, with no in-app purchases.
Do Groove Lab Metronome or HarmoniaMASTER have ads?
Neither Groove Lab Metronome nor HarmoniaMASTER shows ads.
Which is updated more often, Groove Lab Metronome or HarmoniaMASTER?
Groove Lab Metronome ships an update every 4 months, and HarmoniaMASTER every 5 days. Most recently, Groove Lab Metronome was updated on October 31, 2026 and HarmoniaMASTER on October 24, 2026.

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