# OTOKAI vs M

The clearest difference is price: OTOKAI at Free against M's $6.99. OTOKAI also leads on iOS requirement (15.5 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

OTOKAI is free to download; M costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OTOKAI ships an update weekly, M every 4 days. The most recent releases landed on November 4, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OTOKAI | M |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free | — |
| Size | 93 MB | 5 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Amadeus Code Inc.](https://appshunter.io/developer/802869982) | [Code and DESIGN inc.](https://appshunter.io/developer/1172903960) |

## What reviewers say

### OTOKAI

[App page](https://appshunter.io/ios/app/otokai/id6499198233)

Engage your mind and brain with music through interactive listening, creative expression, and social connection. This app encourages active participation by comparing tracks, articulating feelings, and combining music with photos or videos. It fosters cognitive health and social well-being in a private environment.

**Highlights:** Interactive music listening, Create music and photo/video combinations, Closed social network for sharing, Brain activity enhancement, Daily brain health habit, Private and safe environment

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

**In-app purchases:** none


### M

[App page](https://appshunter.io/ios/app/m-nes-8-bit-chiptune-studio/id6799117945)

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

**In-app purchases:** none


## Frequently asked questions

### Is OTOKAI free?

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

### Is M free?

M costs $6.99, with no in-app purchases.

### Do OTOKAI or M have ads?

Neither OTOKAI nor M shows ads.

### Which is updated more often, OTOKAI or M?

OTOKAI ships an update weekly, and M every 4 days. Most recently, OTOKAI was updated on November 4, 2026 and M 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.*