# ScheduleScreen vs KOI Keyboard

The clearest difference is update cadence: KOI Keyboard at every 4 days against ScheduleScreen's every 9 days. KOI Keyboard also leads on iOS requirement (16.0 vs 18). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ScheduleScreen sells 3 in-app purchases, starting at $0.99 per month and KOI Keyboard sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ScheduleScreen ships an update every 9 days, KOI Keyboard every 4 days. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ScheduleScreen | KOI Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 173 MB | 218 MB |
| Requires iOS | 18 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shum Wing Chiu](https://appshunter.io/developer/593940858) | [Chi Yu Cheng](https://appshunter.io/developer/1896654870) |

## What reviewers say

### ScheduleScreen

[App page](https://appshunter.io/ios/app/schedulescreen/id6761685280)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-Month Plan | $0.99 | per month |
| One-Year Plan | $4.99 | per year |
| One-Time Purchase | $7.99 | one-time |


### 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 ScheduleScreen free?

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

### Is KOI Keyboard free?

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

### Do ScheduleScreen or KOI Keyboard have ads?

Neither ScheduleScreen nor KOI Keyboard shows ads.

### Which is updated more often, ScheduleScreen or KOI Keyboard?

ScheduleScreen ships an update every 9 days, and KOI Keyboard every 4 days. Most recently, ScheduleScreen was updated on October 6, 2026 and KOI Keyboard on October 28, 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.*