Comparison

Grothm vs simple loop machine

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

Head to head
About

Grothm

Read full description

Grothm is a structured practice tracker with a professional metronome built in. Plan sessions, automate tempo changes, and track time, BPM, goals, and progress over time. TRAIN WITH A PLAN Build focused routines for warm-ups, rudiments, speed, technique, and repertoire. AUTOMATE TEMPO TRAINING Use multiple automatic tempo modes to develop speed without adjusting the metronome by hand. TRACK EVERY SESSION Automatically record practice time, tempo, goals, and completion history. SEE YOUR PROGRESS Review growth curves and time-range reports to understand how your practice develops. PROFESSIONAL METRONOME Train with precise timing, advanced subdivisions, dotted notes, automatic tempo changes, and speeds up to 350 BPM. FOCUSED CYBERPUNK DESIGN A clear, immersive interface built for focused practice. PRIVATE AND DISTRACTION-FREE No account. No ads. No internet required. Your data stays on your device. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

simple loop machine

Features
Read full description

simple loop machine is a straightforward loop-style music app: record up to eight samples from the microphone, assign them to pads, then play, loop, reverse, trim, and scratch. No DAW-style complexity—great for ideas, practice, and live sketches. Features • 8-pad recording - Free mode: hold an empty pad to record; release to stop - Fixed mode: set BPM and bars, tap an empty pad to record a fixed length • Play/stop, loop, reverse playback • Waveform view with trim handles • Zoom (full waveform / selection range) • Volume and pitch per pad • Scratch strip (drag left and right) • Mix recording: capture pad playback into one mix; play, export, or delete • Settings: default record mode, default BPM/bars for fixed mode, delete all pads • In-app languages: Japanese, English, Simplified Chinese, Traditional Chinese, Korean Privacy & data • Samples and mixes are stored only on your device • No account required • Microphone is used only for recording to pads • Export uses the system share sheet (Files, AirDrop, etc.) Notes • Use caution with headphones or speakers—levels can be loud • Microphone permission is required on first launch • A real device is recommended for recording (simulator has no mic) Support: contact us via the Support URL on the store listing.

Screenshots

Grothm4 screens
simple loop machine4 screens

Verdict

The call

The clearest difference is in-app purchases: simple loop machine at none against Grothm's 1. simple loop machine also leads on update cadence (every 4 days vs every 3 weeks). Grothm's advantage is ads (none vs shown). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Grothm sells 1 one-off in-app purchase. simple loop machine asks for nothing beyond the download.

UpkeepUpdate frequency

Grothm ships an update every 3 weeks, simple loop machine every 4 days. Both last shipped on November 5, 2026.

Scorecard3 real differences · 3 level
Grothm versus simple loop machine: the parameters behind the verdict, then further details
ParameterGrothmsimple loop machine
PriceFreeFree
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad — better
Requires iOS1817.0 — better
Further details — not scored
Size7 MB5 MB
Age rating4+4+
Developer雒敏 郭GoateeAllstars

In-app purchases

1 purchases

Grothm

One-time1
  • Grothm Pro$2.99
None

simple loop machine

No in-app purchases

Questions

Is Grothm free?
Grothm is free to download, with in-app purchases available.
Is simple loop machine free?
simple loop machine is free to download, with no in-app purchases.
Do Grothm or simple loop machine have ads?
simple loop machine shows ads; Grothm does not.
Which is updated more often, Grothm or simple loop machine?
Grothm ships an update every 3 weeks, and simple loop machine every 4 days. Most recently, Grothm was updated on November 5, 2026 and simple loop machine on November 5, 2026.

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