# KKN.Checkin vs Children

The clearest difference is update cadence: Children at every 2 months against KKN.Checkin's every 18 months. Children also leads on device support (4 vs 1). KKN.Checkin's advantage is iOS requirement (12.0 vs 15.6). On price, ads and in-app purchases there is nothing between them.

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

KKN.Checkin ships an update every 18 months, Children every 2 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | KKN.Checkin | Children |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Size | 20 MB | 65 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Katholische Gesamtkirchengemeinde Nuernberg](https://appshunter.io/developer/1527414963) | [Assemble A/S](https://appshunter.io/developer/483546606) |

## What reviewers say

### KKN.Checkin

[App page](https://appshunter.io/ios/app/kkncheckin/id1527416996)

**Features:** macOS Compatibility

**In-app purchases:** none


### Children

[App page](https://appshunter.io/ios/app/children/id1575701921)

**Features:** macOS Compatibility, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KKN.Checkin free?

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

### Is Children free?

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

### Do KKN.Checkin or Children have ads?

Neither KKN.Checkin nor Children shows ads.

### Which is updated more often, KKN.Checkin or Children?

KKN.Checkin ships an update every 18 months, and Children every 2 months. Most recently, KKN.Checkin was updated on November 7, 2026 and Children on November 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.*