# IDDA vs Diving Assist

The clearest difference is in-app purchases: IDDA at none against Diving Assist's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Diving Assist sells 1 in-app purchase, starting at $9.99 per year. IDDA asks for nothing beyond the download.

IDDA ships an update every 2 weeks, Diving Assist every 9 days. The most recent releases landed on October 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | IDDA | Diving Assist |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 37 MB | 11 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [IDDA GmbH](https://appshunter.io/developer/1663006167) | [Emerson Warwick](https://appshunter.io/developer/1582689025) |

## 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


### Diving Assist

[App page](https://appshunter.io/ios/app/diving-assist/id6755851888)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $9.99 | per year |


## Frequently asked questions

### Is IDDA free?

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

### Is Diving Assist free?

Diving Assist is free to download, with in-app purchases available.

### Do IDDA or Diving Assist have ads?

Neither IDDA nor Diving Assist shows ads.

### Which is updated more often, IDDA or Diving Assist?

IDDA ships an update every 2 weeks, and Diving Assist every 9 days. Most recently, IDDA was updated on October 5, 2026 and Diving Assist on September 24, 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.*