# Scuba Trainer vs UEF

The clearest difference is in-app purchases: UEF at none against Scuba Trainer's 3. Scuba Trainer's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Scuba Trainer sells 3 in-app purchases, starting at $3.99 per 7 days. UEF asks for nothing beyond the download.

Scuba Trainer ships an update every 2 weeks, UEF every 3 months. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Scuba Trainer | UEF |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Freemium | — |
| Size | 18 MB | 16 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jan Luther](https://appshunter.io/developer/368269906) | [4D Soft Kft](https://appshunter.io/developer/1765271471) |

## What reviewers say

### Scuba Trainer

[App page](https://appshunter.io/ios/app/scuba-trainer-for-divers/id1308152033)

Prepare for your next dive by practicing real exam questions and mastering dive theory. This app offers adaptive learning, personalized study plans, and a comprehensive logbook to track your progress. It's designed to help you refresh your knowledge and feel confident before your certification or next adventure.

**Highlights:** Nearly 400 fact-checked exam questions, 12 topic areas including physics, physiology, and safety, Exam mode simulating real tests, Adaptive learning with smart repetition, Personalized learning plans and reminders, Progress tracking with badges and logbook

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scuba Premium — Weekly | $3.99 | per 7 days |
| Scuba Premium — Monthly | $12.99 | per month |
| Scuba Premium — Yearly | $17.99 | per year |


### UEF

[App page](https://appshunter.io/ios/app/uef/id1631985721)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scuba Trainer free?

Scuba Trainer is free to download, with in-app purchases available.

### Is UEF free?

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

### Do Scuba Trainer or UEF have ads?

Neither Scuba Trainer nor UEF shows ads.

### Which is updated more often, Scuba Trainer or UEF?

Scuba Trainer ships an update every 2 weeks, and UEF every 3 months. Most recently, Scuba Trainer was updated on October 4, 2026 and UEF on October 14, 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.*