# Kyomei vs Octal

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.

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.

## The numbers

| Metric | Kyomei | Octal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/octal-pocket-synth/id6822089963/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 36 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jun-seob Byun](https://appshunter.io/developer/1759088435) | [RYAN JAMES,GALANG ELLIS](https://appshunter.io/developer/6818578656) |

## What reviewers say

### Kyomei

[App page](https://appshunter.io/ios/app/kyomei/id6762557760)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Octal

[App page](https://appshunter.io/ios/app/octal-pocket-synth/id6822089963)

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.

**Highlights:** Eight-button chord/note interface, Loop recording and editing, Song arrangement, Diverse sound library, Undo/history functionality, Audio file sharing

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octal, the full version | $9.99 | one-time |


## Frequently asked questions

### Is Kyomei free?

Kyomei is free to download, with no in-app purchases.

### Is Octal free?

Octal is free to download, with in-app purchases available.

### Do Kyomei or Octal have ads?

Neither Kyomei nor Octal shows ads.

### Which is updated more often, Kyomei or Octal?

Kyomei ships an update monthly, and Octal daily. Most recently, Kyomei was updated on October 31, 2026 and Octal on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*