# Science Custom Keyboard vs Study Split

The clearest difference is in-app purchases: Science Custom Keyboard at none against Study Split's 2. Study Split's advantage is update cadence (every 11 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Study Split sells 2 in-app purchases, starting at $0.49 per month. Science Custom Keyboard asks for nothing beyond the download.

Science Custom Keyboard ships an update every 5 weeks, Study Split every 11 days. The most recent releases landed on September 30, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Science Custom Keyboard | Study Split |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Size | 23 MB | 11 MB |
| Requires iOS | **17.5** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yoshiki Tanaka](https://appshunter.io/developer/1704249655) | [Satoshi Yamada](https://appshunter.io/developer/1570646947) |

## What reviewers say

### Science Custom Keyboard

[App page](https://appshunter.io/ios/app/science-custom-keyboard/id6463341508)

**In-app purchases:** none


### Study Split

[App page](https://appshunter.io/ios/app/study-split/id6756714397)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Up to 5 Subjects (Monthly) | $0.49 | per month |
| Unlimited Subjects (Monthly) | $0.99 | per month |


## Frequently asked questions

### Is Science Custom Keyboard free?

Science Custom Keyboard is free to download, with no in-app purchases.

### Is Study Split free?

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

### Do Science Custom Keyboard or Study Split have ads?

Neither Science Custom Keyboard nor Study Split shows ads.

### Which is updated more often, Science Custom Keyboard or Study Split?

Science Custom Keyboard ships an update every 5 weeks, and Study Split every 11 days. Most recently, Science Custom Keyboard was updated on September 30, 2026 and Study Split on September 21, 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.*