# ProTec Smart vs IDDA

The clearest difference is price: IDDA at Free against ProTec Smart's $3.99. IDDA also leads on update cadence (every 2 weeks vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

IDDA is free to download; ProTec Smart costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProTec Smart ships an update every 4 months, IDDA every 2 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ProTec Smart | IDDA |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 58 MB | 37 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alpha ITC](https://appshunter.io/developer/1476253737) | [IDDA GmbH](https://appshunter.io/developer/1663006167) |

## What reviewers say

### ProTec Smart

[App page](https://appshunter.io/ios/app/protec-smart-card/id1480710270)

**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 ProTec Smart free?

ProTec Smart costs $3.99, with no in-app purchases.

### Is IDDA free?

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

### Do ProTec Smart or IDDA have ads?

Neither ProTec Smart nor IDDA shows ads.

### Which is updated more often, ProTec Smart or IDDA?

ProTec Smart ships an update every 4 months, and IDDA every 2 weeks. Most recently, ProTec Smart was updated on September 22, 2026 and IDDA on September 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*