# DERUIZ vs GEOMAR Authenticator

The clearest difference is update cadence: GEOMAR Authenticator at every 3 months against DERUIZ's every 6 months. 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.

DERUIZ ships an update every 6 months, GEOMAR Authenticator every 3 months. The most recent releases landed on October 8, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | DERUIZ | GEOMAR Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 269 MB | 42 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mosen E-commerce (Hangzhou) Co.,Ltd](https://appshunter.io/developer/1614611050) | [NetKnights GmbH](https://appshunter.io/developer/1445401030) |

## What reviewers say

### DERUIZ

[App page](https://appshunter.io/ios/app/deruiz/id1614611048)

**In-app purchases:** none


### GEOMAR Authenticator

[App page](https://appshunter.io/ios/app/geomar-authenticator/id6476554059)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DERUIZ free?

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

### Is GEOMAR Authenticator free?

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

### Do DERUIZ or GEOMAR Authenticator have ads?

Neither DERUIZ nor GEOMAR Authenticator shows ads.

### Which is updated more often, DERUIZ or GEOMAR Authenticator?

DERUIZ ships an update every 6 months, and GEOMAR Authenticator every 3 months. Most recently, DERUIZ was updated on October 8, 2026 and GEOMAR Authenticator on September 26, 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.*