Kyomei vs Octal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kyomei
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When you and someone nearby are listening to the same song or artist, a quiet signal appears — a moment of connection through music. No profiles. No chatting. No noise. Just music, and the moments it creates. Features: • Detect nearby music resonance • See which song created the moment • Keep a private archive of where it happened • Runs quietly in the background Currently, Kyomei supports Apple Music and locally played audio on your device. Support for additional music players may be added in future updates. Kyomei focuses on simplicity and subtlety. It doesn’t interrupt — it reveals. Privacy-first design: • We only access your currently playing song title and artist • No audio data is collected or stored • No full listening history is accessed • Your location is only used to record your own resonance moments • We do not identify, track, or store information about other users Music is usually personal. Kyomei makes it shared — just for a moment.
Octal
This app transforms your phone into a musical instrument with eight intuitive buttons that always create harmonious chords or notes. Easily record loops, layer beats, and arrange them into full songs. Explore a variety of sounds and share your creations.
- Eight-button chord/note interface
- Loop recording and editing
- Song arrangement
- Diverse sound library
- Undo/history functionality
- Audio file sharing
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Octal turns your phone into an instrument. The eight buttons play chords or notes that always go together, so whatever you press sounds like music. The bead under your other thumb changes their mood or behavior as you play. MAKE A LOOP Press record and play a few bars. Open the wheel, pick drums or a bass, and play over the top. Swipe over to the Loop Deck to see your loop and change it bar by bar. TURN LOOPS INTO A SONG Pinch the Loop Deck and chain your loops into a song. SOUNDS Synths, keys, drum kits, textures and acoustic instruments, a tap away on the wheel. NEVER LOSE AN EDIT Every edit is kept. The history tool lets you wind back to any of them. SHARE IT Send the mix as an audio file, or send the loop or song itself to a friend who has Octal. Making music in Octal is free, with four saved loops and one song. THE FULL VERSION One purchase, no subscription. MIDI and stems to finish your song in a DAW, MIDI out to play other synths, the bead lab to make and keep sounds of your own, and as many loops and songs as you like. PRIVACY Octal collects no data. The microphone is only on while you record a sound or play a Vocoder.
Screenshots
Verdict
The clearest difference is in-app purchases: Kyomei at none against Octal's 1. Kyomei also leads on iOS requirement (18.0 vs 26.0). Octal's advantage is update cadence (daily vs monthly). On price, 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
Both are free to download. Octal sells 1 one-off in-app purchase. Kyomei asks for nothing beyond the download.
Kyomei ships an update monthly, Octal daily. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.
| Parameter | Kyomei | Octal |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Jun-seob Byun | RYAN JAMES,GALANG ELLIS |
In-app purchases
Kyomei
No in-app purchases
Octal
- Octal, the full version$9.99









