# STAmina Apnea Trainer vs UW*Admin

The clearest difference is in-app purchases: UW*Admin at none against STAmina Apnea Trainer's 2. UW*Admin also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. STAmina Apnea Trainer sells 2 in-app purchases, starting at $4.99 per month. UW*Admin asks for nothing beyond the download.

STAmina Apnea Trainer ships an update every 5 days, UW*Admin every 6 days. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | STAmina Apnea Trainer | UW*Admin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (5.4K ratings)](https://appshunter.io/ios/app/stamina-apnea-trainer/id994874491/reviews)** | — |
| Number of ratings | **5.4K** | — |
| Positive reviews | 88.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 29 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Squarecrowd Apps, LLC](https://appshunter.io/developer/1438497992) | [Atlantis Sports](https://appshunter.io/developer/1695622404) |

## What reviewers say

### STAmina Apnea Trainer

[App page](https://appshunter.io/ios/app/stamina-apnea-trainer/id994874491)

This app helps users improve their breath-holding capabilities for activities like freediving, spearfishing, and other water sports. It offers various training tables and personalized programs to enhance physical and mental endurance underwater.

**Highlights:** 6 Apnea table options (O2 deprivation, CO2 tolerance, Wonka, Mix, Custom, Pranayama), Personalized training programs with 3 difficulty levels, Customizable exercise settings, Training reminders, Detailed statistics and training history, Voice guidance, Heart rate and oxygen saturation tracking (requires compatible monitor)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STAmina Pro (1 Month) | $4.99 | per month |
| STAmina Pro (1 Year) | $29.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Helps improve breath hold
- 🚀 Customizable tables
- 👍 Tracks progress
- 👍 Integrates with devices

**What reviewers complain about**

- 🐛 Glitchy UI when switching devices
- 🐛 Unreliable Apple Watch sync
- 🐛 Buggy watch app
- 🐛 Laggy sync between watch and phone
- 🐛 Haptic feedback issues

**Reported bugs**

- Apple Watch app doesn't synchronize reliably
- Watch app missing features of phone app
- Random beeps and haptics not selected in settings
- App crashes when run from synced phone
- HRV not recorded in Apple Health

**Requested features**

- Recommended training regimens based on goals
- Voice announcements of passing time
- Ability to pause/resume rest intervals
- Apple Watch app with same functionality as phone app
- Integration with more pulse oximeters


### UW*Admin

[App page](https://appshunter.io/ios/app/uwadmin/id6450905927)

**In-app purchases:** none


## Frequently asked questions

### Is STAmina Apnea Trainer free?

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

### Is UW*Admin free?

UW*Admin is free to download, with no in-app purchases.

### Do STAmina Apnea Trainer or UW*Admin have ads?

Neither STAmina Apnea Trainer nor UW*Admin shows ads.

### Which is updated more often, STAmina Apnea Trainer or UW*Admin?

STAmina Apnea Trainer ships an update every 5 days, and UW*Admin every 6 days. Most recently, STAmina Apnea Trainer was updated on September 22, 2026 and UW*Admin on September 13, 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.*