AumChord vs TONAUT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AumChord
Create music instantly with an ambient chord synthesizer. Explore seven pads and a joystick to generate chords that fit any key, with a built-in synth engine and recording capabilities. Output MIDI for external control.
- Seven chord pads
- Joystick for chord variation
- Built-in synth engine with 17 sounds
- Arpeggiator
- Loop recording and layering
- MIDI output for external synths
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AumChord is an Ambient Chord Synthesizer with seven pads, a joystick and instant sound. Pick a key and every pad plays a chord that fits, so you can make music without knowing any theory. SEVEN PADS, ONE JOYSTICK Seven chord pads, one for each step of the scale, in all 12 keys, major or minor. Hold a pad and push the joystick to change the chord: add a 7th or a 9th, suspend it, strip it down to a power chord, open up the voicing or jump an octave. Switch to mono for single-note lines, or let the arpeggiator play the notes of a held chord in a shuffled order. AumChord is an instrument. Anyone can play it in a minute, and the more you learn its moves, the more it gives back. SOUND ENGINE 17 built-in sounds from AumChord's own synth engine, each with its own filter, reverb and delay. Switch between them at any time. New sounds arrive with updates, so there is always something new to play with. RECORD, LAYER, KEEP Pick a length of 1, 2, 4 or 8 bars, turn on the metronome and record. Stack up to three loop layers, each with its own volume adjustment. Save loops to your library or share them as WAV files to use in your own projects. PLAY EVERYTHING ELSE AumChord is also a controller. Every chord you play goes out as a MIDI signal, so the same seven pads and joystick can play any synth you own: another app on your iPhone, or a full studio setup on your computer over USB. One finger, full chords, in your own sounds. BUY ONCE, KEEPS GROWING No subscription, no in-app purchases, no account. Improvements and new sounds arrive as free updates.
TONAUT
This music creation app combines a synthesizer, drum machine, sequencer, and eight-track tape recorder. It's designed for intuitive live performance and can also function as an AUv3 plugin within other music applications.
- Nine synth engines with 3D sound visualization
- Multiple drum engines with customizable kits
- AUv3 plugin support for other music apps
- Eight-track tape recorder with looping and effects
- Live performance features with X/Y pad and chord pads
- Song mode for arranging patterns into songs
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Tonaut is a synthesizer, drum machine, sequencer and eight-track tape recorder in one instrument, made to be played rather than programmed. Pick a sound, tap out a pattern and record it to tape, all on one panel that feels more like hardware than an app. New in 2.0, it also plays inside your other music apps as an AUv3 plug-in. SOUNDS • Nine synth engines: virtual analog, six-operator FM, wavetable, pulse, modeled string, a seven-oscillator swarm, grains, a classic analog poly and a sampler • Every engine has a 3D screen that moves with your playing, or a classic view • Over 500 sounds, including 147 sampled instruments. Edit any of them in depth, save your own and star favorites • Load DX7-style SysEx banks into the FM engine • Four effects on every sound from sixteen types, a master effect, and an EQ on every lane and the master DRUMS • 43 kits on three drum engines: recorded drum kits, synthesized kits where every pad is its own drum, and slice kits • Knock and Cinder kits drawn in 3D, moving with every hit • A groove player: hold any pad and the whole kit plays one of sixteen grooves • Make kits from your own recordings or from audio files AUv3 PLUG-IN (NEW) • Play Tonaut inside AUM, Loopy Pro, GarageBand and other AUv3 hosts • A big window shows the full panel; a small one shows a compact card with all eight lanes, the tape and a keyboard • Load several copies, each with its own sound, following the host's tempo and transport • Tonaut FX, for effect slots: record another app's audio onto Tonaut's tape. Projects open in the app too SEQUENCER AND SONG MODE • Eight lanes, each with its own sound and sixteen patterns of up to 64 steps • Write step by step or record live, with chords, slides, ratchets and chance; STEP REC from the screen or MIDI • New: Song Mode. Sixteen scenes, each with a pattern for every lane, chained into a song with repeats • Switch patterns or scenes live; copy, swap and transpose patterns, and reorder lanes • An arpeggiator on every synth lane IPHONE DUO • Folded, one octave on the outer screen. Half folded, the screens above the keys. Open, the whole instrument. Folding never stops the music KEYS AND CHORDS • Pick a key and scale and its keys light up; LOCK keeps every note in key • CHORDS plays a whole chord from one key, with the arpeggiator and the sequencer • Chord pad: seven chords from your key and a stick that turns each into a 7th, 9th, sus, dim and more PLAY IT LIVE • A Perform page with TONE and SPACE for every lane • An X/Y pad that bends pitch and moves the sound under one finger • One-tap mutes, tap tempo, click and count-in TAPE • Eight tracks of 20 minutes each, or six of 30 minutes • Record every lane to its own track, or several onto one • Loop, reverse, stutter, brake and catch the last 30 seconds you played SAMPLING • Sample with the microphone, a USB interface, or Tonaut itself • Tap a file in your sample folders to hear it, then load it onto a pad or into the sampler MIDI • Play from USB or Bluetooth MIDI keyboards and controllers, on one lane or each lane on its own channel • New: MIDI learn. Touch a control, turn a knob, and it's mapped • Send any lane to your own synths and drum machines, with clock SHARE AND EXPORT • Share a loop from the tape as a vertical video or as audio • Send a whole song, samples and all, as one file a friend opens in Tonaut • Export a stereo mix, WAV stems or MIDI files of every lane, with optional iCloud sync One purchase covers iPhone, iPad and iPhone Duo, each with its own layout, in six looks: TN-Dark, TN-Light, TN-XY, TN-Signal, OG-Dark and OG-Light. No subscription, no account, and Tonaut collects no data. Your music stays yours. REQUIREMENTS • iPhone XS, XR or newer with iOS 17 or later. Not the iPhone SE (its screen is too small) • iPad (6th generation), iPad mini (5th generation), iPad Air (3rd generation), iPad Pro (2017) or newer, iPadOS 17 or later Questions? Write to hello@coastcreative.studio or visit tonaut.app.
Screenshots
Verdict
The clearest difference is price: AumChord at $3.99 against TONAUT's $19.99. TONAUT's advantage is chart position (#48 vs unranked) and ratings volume (8 vs 2). On rating, review sentiment, 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
AumChord costs $3.99 and TONAUT $19.99 up front. 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 AumChord against 5.0 for TONAUT. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | AumChord | TONAUT |
|---|---|---|
| Price | $3.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) | 5.0 (8 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 8 — better |
| Update frequency | — | Daily |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #48 — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Mika Edelijn | Richard Rogers |
Customer experience
AumChord
TONAUT
In-app purchases
AumChord
No in-app purchases
TONAUT
No in-app purchases









