# STK07 Arnsberg vs IDDA

The clearest difference is update cadence: IDDA at every 2 weeks against STK07 Arnsberg's every 3 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.

STK07 Arnsberg ships an update every 3 months, IDDA every 2 weeks. The most recent releases landed on September 22, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | STK07 Arnsberg | IDDA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 44 MB | 37 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Felix Wansing](https://appshunter.io/developer/1145308443) | [IDDA GmbH](https://appshunter.io/developer/1663006167) |

## What reviewers say

### STK07 Arnsberg

[App page](https://appshunter.io/ios/app/stk07-arnsberg/id1583482899)

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

**In-app purchases:** none


### IDDA

[App page](https://appshunter.io/ios/app/idda/id1663006165)

This platform offers e-learning content and certifications to enhance diving knowledge and prepare for exams. It's designed to make learning and exam preparation more accessible for divers. Future updates promise even more features to support your diving journey.

**Highlights:** E-learning content, Brevet platform, Diving knowledge enhancement, Exam preparation, Accessible learning

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

**In-app purchases:** none


## Frequently asked questions

### Is STK07 Arnsberg free?

STK07 Arnsberg is free to download, with no in-app purchases.

### Is IDDA free?

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

### Do STK07 Arnsberg or IDDA have ads?

Neither STK07 Arnsberg nor IDDA shows ads.

### Which is updated more often, STK07 Arnsberg or IDDA?

STK07 Arnsberg ships an update every 3 months, and IDDA every 2 weeks. Most recently, STK07 Arnsberg was updated on September 22, 2026 and IDDA on October 5, 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.*