# IDDA vs Vivalpin Skischule

The clearest difference is update cadence: Vivalpin Skischule at every 8 days against IDDA's every 2 weeks. 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.

IDDA ships an update every 2 weeks, Vivalpin Skischule every 8 days. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | IDDA | Vivalpin Skischule |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 37 MB | 27 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [IDDA GmbH](https://appshunter.io/developer/1663006167) | [Make IT Simple GmbH](https://appshunter.io/developer/1820364433) |

## What reviewers say

### 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


### Vivalpin Skischule

[App page](https://appshunter.io/ios/app/vivalpin-skischule/id6474937865)

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

**In-app purchases:** none


## Frequently asked questions

### Is IDDA free?

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

### Is Vivalpin Skischule free?

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

### Do IDDA or Vivalpin Skischule have ads?

Neither IDDA nor Vivalpin Skischule shows ads.

### Which is updated more often, IDDA or Vivalpin Skischule?

IDDA ships an update every 2 weeks, and Vivalpin Skischule every 8 days. Most recently, IDDA was updated on October 5, 2026 and Vivalpin Skischule on September 30, 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.*