# KKN.Checkin vs Children @Work

The clearest difference is update cadence: Children @Work at every 4 months against KKN.Checkin's every 18 months. Children @Work also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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 @Work every 4 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | KKN.Checkin | Children @Work |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 months** |
| Size | 20 MB | 57 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| 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 @Work

[App page](https://appshunter.io/ios/app/children-work/id6450419795)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is KKN.Checkin free?

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

### Is Children @Work free?

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

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

Neither KKN.Checkin nor Children @Work shows ads.

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

KKN.Checkin ships an update every 18 months, and Children @Work every 4 months. Most recently, KKN.Checkin was updated on November 7, 2026 and Children @Work on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*