# KeyCodeCheck vs Isotta

The clearest difference is update cadence: Isotta at every 2 weeks against KeyCodeCheck's every 2 months. Isotta also leads on iOS requirement (15.6 vs 17.0). 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.

KeyCodeCheck ships an update every 2 months, Isotta every 2 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | KeyCodeCheck | Isotta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 1 MB | 20 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kenta Akimoto](https://appshunter.io/developer/483671514) | [Isotecnic srl](https://appshunter.io/developer/6809826767) |

## What reviewers say

### KeyCodeCheck

[App page](https://appshunter.io/ios/app/keycodecheck/id6471914369)

**Features:** macOS Compatibility

**In-app purchases:** none


### Isotta

[App page](https://appshunter.io/ios/app/isotta/id6809826765)

**In-app purchases:** none


## Frequently asked questions

### Is KeyCodeCheck free?

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

### Is Isotta free?

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

### Do KeyCodeCheck or Isotta have ads?

Neither KeyCodeCheck nor Isotta shows ads.

### Which is updated more often, KeyCodeCheck or Isotta?

KeyCodeCheck ships an update every 2 months, and Isotta every 2 weeks. Most recently, KeyCodeCheck was updated on October 7, 2026 and Isotta on October 10, 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.*