# TauchApp vs IDDA

The clearest difference is iOS requirement: TauchApp at 12.0 against IDDA's 15.6. 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.

TauchApp ships an update every 3 weeks, IDDA every 2 weeks. The most recent releases landed on May 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | TauchApp | IDDA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 45 MB | 37 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Bembel Divers GmbH](https://appshunter.io/developer/1571124793) | [IDDA GmbH](https://appshunter.io/developer/1663006167) |

## What reviewers say

### TauchApp

[App page](https://appshunter.io/ios/app/tauchapp/id1571124791)

**Features:** macOS Compatibility

**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 TauchApp free?

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

### Is IDDA free?

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

### Do TauchApp or IDDA have ads?

Neither TauchApp nor IDDA shows ads.

### Which is updated more often, TauchApp or IDDA?

TauchApp ships an update every 3 weeks, and IDDA every 2 weeks. Most recently, TauchApp was updated on May 16, 2026 and IDDA on September 17, 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.*