# PhysKey Custom vs iFlickMath

The clearest difference is in-app purchases: PhysKey Custom at none against iFlickMath's 1. iFlickMath's advantage is update cadence (every 6 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iFlickMath sells 1 one-off in-app purchase. PhysKey Custom asks for nothing beyond the download.

PhysKey Custom ships an update every 4 months, iFlickMath every 6 days. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PhysKey Custom | iFlickMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Size | 5 MB | 23 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryosuke Asano](https://appshunter.io/developer/1858758761) | [ASAHI TAKATSUKA](https://appshunter.io/developer/1811960139) |

## What reviewers say

### PhysKey Custom

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

**In-app purchases:** none


### iFlickMath

[App page](https://appshunter.io/ios/app/iflickmath-math-keyboard/id6760843026)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| カスタム5スロット解放 | $1.99 | one-time |


## Frequently asked questions

### Is PhysKey Custom free?

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

### Is iFlickMath free?

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

### Do PhysKey Custom or iFlickMath have ads?

Neither PhysKey Custom nor iFlickMath shows ads.

### Which is updated more often, PhysKey Custom or iFlickMath?

PhysKey Custom ships an update every 4 months, and iFlickMath every 6 days. Most recently, PhysKey Custom was updated on September 19, 2026 and iFlickMath on September 20, 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.*