# CMU Children's School vs IDProtect®

The clearest difference is update cadence: IDProtect® at every 3 months against CMU Children's School's every 6 months. IDProtect® also leads on iOS requirement (13.0 vs 15.0). 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.

CMU Children's School ships an update every 6 months, IDProtect® every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CMU Children's School | IDProtect® |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 56 MB | 37 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carnegie Mellon University](https://appshunter.io/developer/336857960) | [Econ-O-Check Corporation](https://appshunter.io/developer/992633342) |

## What reviewers say

### CMU Children's School

[App page](https://appshunter.io/ios/app/cmu-childrens-school/id1624954037)

**Features:** Vision Pro support

**In-app purchases:** none


### IDProtect®

[App page](https://appshunter.io/ios/app/idprotect/id6738796263)

**In-app purchases:** none


## Frequently asked questions

### Is CMU Children's School free?

CMU Children's School is free to download, with no in-app purchases.

### Is IDProtect® free?

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

### Do CMU Children's School or IDProtect® have ads?

Neither CMU Children's School nor IDProtect® shows ads.

### Which is updated more often, CMU Children's School or IDProtect®?

CMU Children's School ships an update every 6 months, and IDProtect® every 3 months. Most recently, CMU Children's School was updated on November 3, 2026 and IDProtect® on November 4, 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.*