# Nyoki! Mushroom Timer vs KOI Keyboard

The clearest difference is in-app purchases: Nyoki! Mushroom Timer at none against KOI Keyboard's 10. KOI Keyboard's advantage is ads (none vs shown) and iOS requirement (16.0 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. KOI Keyboard sells 10 one-off in-app purchases. Nyoki! Mushroom Timer asks for nothing beyond the download.

Nyoki! Mushroom Timer ships an update every 5 days, KOI Keyboard every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Nyoki! Mushroom Timer | KOI Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 24 MB | 218 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yu Shao Cheng](https://appshunter.io/developer/1895578983) | [Chi Yu Cheng](https://appshunter.io/developer/1896654870) |

## What reviewers say

### Nyoki! Mushroom Timer

[App page](https://appshunter.io/ios/app/nyoki-mushroom-timer/id6763967229)

**Features:** macOS Compatibility

**In-app purchases:** none


### KOI Keyboard

[App page](https://appshunter.io/ios/app/koi-keyboard/id6789937180)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 稜鏡主題 | $0.99 | one-time |
| 脈衝主題 | $0.99 | one-time |
| 浮影主題 | $0.99 | one-time |
| 座標主題 | $0.99 | one-time |
| 翹角主題 | $0.99 | one-time |
| 柔丘主題 | $0.99 | one-time |
| 隱翹主題 | $0.99 | one-time |
| 隱翹・律主題 | $0.99 | one-time |
| 隱翹・霓主題 | $0.99 | one-time |
| KOI Keyboard Sizing | $1.99 | one-time |


## Frequently asked questions

### Is Nyoki! Mushroom Timer free?

Nyoki! Mushroom Timer is free to download, with no in-app purchases.

### Is KOI Keyboard free?

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

### Do Nyoki! Mushroom Timer or KOI Keyboard have ads?

Nyoki! Mushroom Timer shows ads; KOI Keyboard does not.

### Which is updated more often, Nyoki! Mushroom Timer or KOI Keyboard?

Nyoki! Mushroom Timer ships an update every 5 days, and KOI Keyboard every 4 days. Most recently, Nyoki! Mushroom Timer was updated on October 24, 2026 and KOI Keyboard on October 24, 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.*