Audio Object vs iSimpleLoop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
iSimpleLoop
Record and layer multiple audio tracks to create songs. Features built-in instruments like guitar, keys, and pads, along with editing tools and effects. Export your creations as audio or MIDI files.
- Multi-track recording
- Built-in guitar, keys, and pads
- Audio and MIDI export
- Song arrangement and editing
- Effects and EQ
- Lyrics and note editor
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iSimpleLoop is a pocket sketchpad for songs. Record a loop, stack takes over it, play the guitar, the keys and the pads on top, keep the lyrics in front of you — and take the result out as audio or MIDI. Everything runs on the device. No account, no subscription, no cloud, no internet connection. LOOPER • Up to 8 tracks. Looped tracks follow the master loop, linear ones run the whole length of the song. • The first take sets the loop length; an overdub stops itself after one lap. • Count-in, metronome, and a per-track input: microphone, the app's instruments, or both. • Latency compensation, so a take lands where you played it. INSTRUMENTS • Guitar: strum and pluck six strings with your fingers, chords of the chosen key, power chords, capo, four tones from nylon to overdrive. • Keys: a polyphonic synth with piano, e-piano, pad, bass and lead, sustain and an octave shift. • Pads: 16 pads, 62 built-in sounds, pitch, filter and decay knobs, reverse. • Sampling from the microphone straight onto a pad, plus import of WAV, MP3, M4A, AIFF and FLAC with a trim screen. ARRANGEMENT AND EDITING • The whole song on one timeline: bar ruler, waveforms, playhead, scrubbing. • Select a fragment and trim, cut, silence, fade, normalise, reverse or nudge it by a beat — or drag it onto another track. • Three-band EQ and pan on every track. EFFECTS • Inserts on each track: compressor, overdrive, chorus and flanger. • Two project-wide send buses: a tempo-synced delay and a reverb. • Live instruments sound with the effect but are recorded dry, so the decision stays reversible. LYRICS • The lyrics live in the project, split into sections, and can sit next to the guitar while you play. NOTE EDITOR • Piano roll for the keys, a drum grid for the pads and six-line tabs for the guitar. • Move, stretch, copy, quantize, change pitch, fret, string and velocity — the track rebuilds from the notes right away, so you hear the change in the mix. • Undo and redo; cancel brings the track back exactly as it was. SLICE • Chop a sample by hits, into equal parts or on the tempo grid, drag the markers, tap a slice to hear it. • Slices land on consecutive pads — optionally together with a notes track that plays them in the original order. CHORDS • Any chord on any of the eight buttons: major, minor, 7, maj7, m7, sus2, sus4, add9, 6, m6, dim, aug. • Playable shapes are found automatically; pick a variant or place your own fingers on the fretboard. HARDWARE • USB audio interfaces: choose the input and the channel to record; other sample rates are converted on the fly. • MIDI keyboards over USB and Bluetooth play the synth and record like the on-screen keys; channel 10 plays the pads. • Foot controllers: MIDI Learn for play, record and stop; keyboard-style page-turner pedals work out of the box. EXPORT • WAV 24-bit, M4A (AAC) and MIDI — a track per instrument, pads on channel 10. • A home screen widget records a sample straight into the library. Landscape on iPhone and iPad. Interface in English, Russian, German and Italian.
Screenshots
Verdict
The clearest difference is update cadence: iSimpleLoop at every 3 days against Audio Object's every 2 months. On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Audio Object against 5.0 for iSimpleLoop. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Audio Object ships an update every 2 months, iSimpleLoop every 3 days. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.
| Parameter | Audio Object | iSimpleLoop |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Green Rose Systems, LLC | Artem Kolchin |
Customer experience
Audio Object
iSimpleLoop
In-app purchases
Audio Object
No in-app purchases
iSimpleLoop
No in-app purchases









