Comparison

NSM Groove Metronome vs Audio Object

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

Head to head
About

NSM Groove Metronome

Features
Read full description

Groove Metronome helps musicians see, hear, and trust the click. Built by Nathaniel School of Music, it combines a clean practice metronome with visual beat maps, accent control, subdivisions, polyrhythm, polymeter, rhythm assist tools, setlists, and audio/MIDI analysis. Use it for daily practice, teaching, rehearsals, and stage work. The main wheel stays readable on phone, iPad, and desktop. Setlist Studio gives performers a concert-focused view with big controls, song timing, quick tempo changes, sharing, backup, and panic recovery. Analyzer helps you import audio or MIDI, estimate tempo, inspect markers, and then apply the tempo only when you choose. Highlights: - Large visual metronome wheel - Time signatures, subdivisions, accents, and mute states - Per-beat beat map patterns - Polyrhythm and polymeter practice views - Jazz, dotted, and triplet rhythm assist - Setlist Studio for concerts and rehearsals - Audio and MIDI tempo analysis - Offline-ready browser core - Tasteful sampled click sounds - iPhone and iPad friendly controls Groove Metronome is designed to feel simple first, then deep when you need it.

About

Audio Object

This pocket-sized instrument turns your iPhone into a portable music creation studio. It features a four-track looper, a three-voice drum machine, and an eight-pad sampler with extensive editing capabilities. Seamlessly integrate with your Mac DAW via USB for professional workflows.

Highlights
  • Four-track looper with bar-quantized recording
  • Three-voice drum machine click track
  • Eight-pad sampler with EQ and varispeed
  • Project save, load, and WAV stem export
  • Stereo audio streaming to Mac DAWs via USB
  • MIDI clock output over USB
  • Records stereo from Core Audio interfaces
Features
Read full description

Audio Object is a pocket-sized music instrument for iPhone. It looks and works like a small piece of hardware — a wooden body with an instrument panel on each face. Pull the wood edge and the body rotates to the next face. WHAT IT DOES - Four-track looper with bar-quantized recording and per-loop trim - Three-voice drum machine as the click track — kick, snare, hi-hat with a per-step accent grid - Eight-pad sampler with grid, auto, and tap chopping, two switchable banks, three-band EQ, varispeed tuning - Project save, load, and WAV stem export with tempo map - Streams audio to any Mac DAW over USB (Inter-Device Audio & MIDI) - Sends MIDI clock over USB — Ableton, Logic, and Bitwig lock transport to the phone - Records stereo from any Core Audio interface (iRig, Focusrite, MOTU, and others) HOW IT WORKS Six faces. Perform pads on one, sampler on another, click and time signature on a third, projects on the back, I/O on top, master on the bottom. No menus, no tabs. Every control lives on the body. The click track is not a metronome. It is a three-voice drum machine with per-step accents, subdivisions from quarter notes to swing, and time signatures from 3/4 to 12/8. Set up a kick-snare-hat pattern, press record, loop on the beat. The sampler holds eight pads across two banks. Record from the mic or load from Files. Chop by grid, by transient, or by tapping markers. Each pad carries a three-band EQ, varispeed pitch, and an amplitude envelope. All eight play polyphonically. Recording quantizes to the bar, the beat, or runs free. A dedicated loop-adjust face trims each loop to the sample — drag the region brackets, snap to the grid, hear the result while the brackets move. Plug the phone into a Mac over USB. Audio Object appears as an audio input and MIDI clock source. The DAW locks transport to the phone's tempo. No drivers, no setup. Plug a USB audio interface into the phone. Audio Object names the device on screen and records through its preamps at up to 48 kHz stereo. WHAT IS NEXT A synthesizer — bass, chord, and lead modes — is in development for the next major release.

Screenshots

NSM Groove Metronome4 screens
Audio Object4 screens

Verdict

The call

The clearest difference is update cadence: NSM Groove Metronome at weekly against Audio Object's every 2 months. NSM Groove Metronome also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NSM Groove Metronome ships an update weekly, Audio Object every 2 months. Both last shipped on October 31, 2026.

Scorecard3 real differences · 6 level
NSM Groove Metronome versus Audio Object: the parameters behind the verdict, then further details
ParameterNSM Groove MetronomeAudio Object
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size11 MB12 MB
Age rating4+4+
DeveloperJason ZachariahGreen Rose Systems, LLC

In-app purchases

None

NSM Groove Metronome

No in-app purchases

None

Audio Object

No in-app purchases

Questions

Is NSM Groove Metronome free?
NSM Groove Metronome is free to download, with no in-app purchases.
Is Audio Object free?
Audio Object is free to download, with no in-app purchases.
Do NSM Groove Metronome or Audio Object have ads?
Neither NSM Groove Metronome nor Audio Object shows ads.
Which is updated more often, NSM Groove Metronome or Audio Object?
NSM Groove Metronome ships an update weekly, and Audio Object every 2 months. Most recently, NSM Groove Metronome was updated on October 31, 2026 and Audio Object on October 31, 2026.

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