Auto Compose Music Box vs 88 Synthwave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Auto Compose Music Box
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The ball falling from a random position creates music. In the scene using the sound of chorus of Africa, the chorus echoes along the circulation code which changes at regular intervals. The scene using the Japanese koto.It is tuned by the sound used in the "sea of spring(haru no umi)", so you can taste the atmosphere without discomfort. In Gamelan's scene, percussion instruments and whistles are tuned by the Gamelan scale (5 scale), and unique music is produced. You can set the frequency, falling speed, and number of falling balls, so you can play according to the setting. At the end of the performance you can save all the parameters at that time. The position of the ball made randomly is recorded as it is. Since it is played with exactly the same parameters, almost the same music can be reproduced. However, because it is a problem of numerical precision, it will not be exactly the same performance, so do not be afraid.
88 Synthwave
This application automatically generates complete synthwave tracks with intros, verses, choruses, and outros. It utilizes chaotic mathematical models for melody and rhythm generation, offering a variety of styles and customizable soundscapes. Users can also play along with the generated music.
- Automatic track generation
- Chaos-driven melody and rhythm
- 11 distinct synthwave styles
- Customizable sound design
- Playable interface
- MIDI export
- Radio mode for continuous playback
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88 Synthwave writes complete synthwave tracks and plays them on its own synths. Press write and you get the whole track: an intro, verses, builds with a riser and a snare roll, choruses with the hook lifted over a pumping mix, a breakdown, solo or bridge in the middle, a final chorus an octave up, and an ending. That can be the arp left running, a fade, or one hit and silence. Everything is synthesized, so there is nothing to download. An analog-style polysynth with up to five detuned oscillators per voice, where no two notes are quite in tune, plays the pads, saw leads, arps and basses. A four-operator FM engine plays the bells, electric piano, brass and sax. Four classic drum machines sit behind a gated-room reverb and a sidechain pump. The tracks come from chaos maths. A Lorenz attractor draws the melody and the hook's rhythm, and a logistic map picks which steps the arpeggiator plays and where the ghost notes fall. Chaos on its own is noise, so a small model filters it: it is rewarded for consonant intervals and learns as it writes. The CHAOS / TASTE slider decides how much say each one gets. There are eleven styles, and each one sets its own scale, drum machine, rack and effects: Outrun, Night Drive, Darksynth, Dreamwave, Disco, Synthpop, Cyberpunk, Horror Synth, Space Disco, Miami Nights and Vaporwave. Tick STYLE LOADS RACK and each style brings its own sound. The sound is half the record. There are four channels (bass, pads and stabs, arp and keys, lead), each with a preamp or amp, a tone stack and a speaker: a studio monitor, a guitar cabinet, a bass cabinet or a car door. Eight one-click racks set a whole sound at once. The effects are the production: sidechain pump, gated room, chorus, tape, bit crush, phaser, width and tape hiss, with a plate, a hall, a spring and a tempo-synced delay on the master. Every track is built from its seed. Write the seed down and you can have that exact track again, note for note. A seed from the browser version rebuilds the same track here. You can play over it, too. The pads are the notes of the track's key rather than a piano keyboard, so nothing you touch is wrong. The sixteen-step lane stays in key when the writer picks a new track, and it follows your host. Both play any of 22 voices through that voice's own channel and out on its MIDI channel. Turn on RADIO and it keeps playing, picking a new style, key, scale and tempo for every track. You also get: • 11 styles, 21 scales, 12 keys, tempo and density • 22 voices: pads, leads, brass, FM bells and keys, arps and basses • 4 drum machines, 14 channel voicings, 6 speakers, 8 racks and 8 effects • Seven-part mixer with a meter on every part • MIDI in, so your keyboard plays whichever voice you have selected • Export a MIDI file, a WAV mix, or stems, one WAV per part (in the app; in a host you record the audio there) • A note and a MIDI channel for every drum and every riser and impact • UI scale, so the panel is not tiny on a big iPad • Live spectrum and waveform, and the chaos engine drawn as it runs There are two Audio Units, an instrument and a MIDI processor. Each part sends on its own MIDI channel and every drum has its own note and channel, so one instance can drive a whole rack of synths. The MIDI version passes your keyboard through. Both follow your host's tempo and transport, and one install registers both. The app is free and nothing in it is held back. Using the Audio Units inside other apps is a one-time purchase, and each AUv3 session plays for two minutes first so you can try them properly. No account, no ads, no subscription. Works offline.
Screenshots
Verdict
The clearest difference is price: 88 Synthwave at Free against Auto Compose Music Box's $0.99. 88 Synthwave also leads on update cadence (every 2 weeks vs every 16 months). Auto Compose Music Box's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On ads and device support 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
88 Synthwave is free to download; Auto Compose Music Box costs $0.99 up front. 88 Synthwave sells 1 one-off in-app purchase. Auto Compose Music Box asks for nothing beyond the download.
Auto Compose Music Box ships an update every 16 months, 88 Synthwave every 2 weeks. The most recent releases landed on October 26, 2026 and November 6, 2026 respectively.
| Parameter | Auto Compose Music Box | 88 Synthwave |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 16 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 58 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | masafumi sasaki | Soft Brew Mobile |
In-app purchases
Auto Compose Music Box
No in-app purchases
88 Synthwave
- AUv3 Unlock$2.99
Questions
Is Auto Compose Music Box free?
Is 88 Synthwave free?
Do Auto Compose Music Box or 88 Synthwave have ads?
Which is updated more often, Auto Compose Music Box or 88 Synthwave?
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