# Science Custom Keyboard vs PhysKey Custom

The clearest difference is update cadence: Science Custom Keyboard at every 2 months against PhysKey Custom's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Science Custom Keyboard ships an update every 2 months, PhysKey Custom every 4 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Science Custom Keyboard | PhysKey Custom |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 1 MB | 5 MB |
| Requires iOS | 17.5 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Niaris](https://appshunter.io/developer/1704249655) | [Ryosuke Asano](https://appshunter.io/developer/1858758761) |

## What reviewers say

### Science Custom Keyboard

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

**In-app purchases:** none


### PhysKey Custom

[App page](https://appshunter.io/ios/app/physkey-custom/id6757507136)

**In-app purchases:** none


## Frequently asked questions

### Is Science Custom Keyboard free?

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

### Is PhysKey Custom free?

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

### Do Science Custom Keyboard or PhysKey Custom have ads?

Neither Science Custom Keyboard nor PhysKey Custom shows ads.

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

Science Custom Keyboard ships an update every 2 months, and PhysKey Custom every 4 months. Most recently, Science Custom Keyboard was updated on October 16, 2026 and PhysKey Custom on October 7, 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.*