NSM Groove Metronome vs Audio Object
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NSM Groove Metronome
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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.
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NSM Groove Metronome ships an update weekly, Audio Object every 2 months. Both last shipped on October 31, 2026.
| Parameter | NSM Groove Metronome | Audio Object |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Zachariah | Green Rose Systems, LLC |
In-app purchases
NSM Groove Metronome
No in-app purchases
Audio Object
No in-app purchases
Questions
Is NSM Groove Metronome free?
Is Audio Object free?
Do NSM Groove Metronome or Audio Object have ads?
Which is updated more often, NSM Groove Metronome or Audio Object?
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