Comparison

Sound Maker Synth 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

Sound Maker Synth

Create unique and complex sounds with a versatile FM synthesizer. Combine up to 10 sound generators, adjust frequencies and waveforms, and add effects like reverb. Explore a wide range of sonic possibilities for pads, basslines, and alien-like textures.

Highlights
  • Multiple sound generators (up to 10)
  • Adjustable frequency and waveforms
  • Volume, modulation, and tremolo effects
  • Real-time sound preview
  • Reverb effect
  • One-octave keyboard for playing
Features
Read full description

This app is capable and complex FM synthesiser that can create rich and very strange sounds combining up to 10 sound generators. Every generator can be adjusted up or down from the main frequency almost without restrictions in range. There are 4 possible wave forms for the generator output and you can tweet the volume, modulation and add some tremolo effect. You can listen to the result sound while you are adjusting the new generator and just add it to the result when it sounds good. With the Sound Maker Synth you can also add reverb and then play it as a one voice synth using the one octave keyboard at the top. The app is very capable to create some strange and alien like pad sounds as some dubstep bass.

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

Sound Maker Synth3 screens
Audio Object4 screens

Verdict

The call

The clearest difference is price: Audio Object at Free against Sound Maker Synth's $1.99. Audio Object also leads on rating (5.0 vs 1.0) and update cadence (every 2 months vs every 41 months). Sound Maker Synth's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 17.0). On ratings volume, 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

Audio Object is free to download; Sound Maker Synth costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Audio Object holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Sound Maker Synth ships an update every 41 months, Audio Object every 2 months. Both last shipped on October 14, 2026.

Scorecard6 real differences · 4 level
Sound Maker Synth versus Audio Object: the parameters behind the verdict, then further details
ParameterSound Maker SynthAudio Object
Price$1.99Free — better
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 41 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.0 — better17.0
Further details — not scored
Size10 MB12 MB
Age rating4+4+
DeveloperAleksandar MlazevGreen Rose Systems, LLC

Customer experience

Sound Maker Synth

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Audio Object

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sound Maker Synth

No in-app purchases

None

Audio Object

No in-app purchases

Questions

Is Sound Maker Synth free?
Sound Maker Synth costs $1.99, with no in-app purchases.
Is Audio Object free?
Audio Object is free to download, with no in-app purchases.
Which has better reviews, Sound Maker Synth or Audio Object?
Audio Object is rated higher. Sound Maker Synth averages 1.0 out of 5 from 1 ratings, while Audio Object averages 5.0 from 1 ratings.
Do Sound Maker Synth or Audio Object have ads?
Neither Sound Maker Synth nor Audio Object shows ads.
Which is updated more often, Sound Maker Synth or Audio Object?
Sound Maker Synth ships an update every 41 months, and Audio Object every 2 months. Most recently, Sound Maker Synth was updated on October 14, 2026 and Audio Object on October 14, 2026.

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