# CHECK vs auf!

The clearest difference is iOS requirement: auf! at 13.0 against CHECK's 16.0. On price, update cadence, 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.

CHECK ships an update every 3 months, auf! every 2 months. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | CHECK | auf! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (5 ratings)](https://appshunter.io/ios/app/check-at/id1572605753/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 65 MB | 25 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Bundesministerium fuer Inneres](https://appshunter.io/developer/1160774953) | [Humanomed IT Solutions GmbH](https://appshunter.io/developer/1616816467) |

## What reviewers say

### CHECK

[App page](https://appshunter.io/ios/app/check-at/id1572605753)

Verify new Austrian passports and ID cards with this app. It guides you through checking QR codes and physical security features step-by-step, ensuring secure local verification without retrieving personal data.

**Highlights:** Verify new Austrian passports and ID cards, QR code verification, Step-by-step security feature guidance, Local verification without internet data retrieval, Securely checks digital and physical features

**In-app purchases:** none


### auf!

[App page](https://appshunter.io/ios/app/auf/id1616816255)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CHECK free?

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

### Is auf! free?

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

### Do CHECK or auf! have ads?

Neither CHECK nor auf! shows ads.

### Which is updated more often, CHECK or auf!?

CHECK ships an update every 3 months, and auf! every 2 months. Most recently, CHECK was updated on October 24, 2026 and auf! on October 3, 2026.

---

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