# STAmina Apnea Trainer vs AvyPal

The clearest difference is price: STAmina Apnea Trainer at Free against AvyPal's $1.99. STAmina Apnea Trainer also leads on update cadence (every 6 days vs every 17 months) and ratings volume (5.4K vs 1). AvyPal's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 88%). On rating, ads, device support and iOS requirement there is nothing between them.

STAmina Apnea Trainer is free to download; AvyPal costs $1.99 up front. STAmina Apnea Trainer sells 2 in-app purchases, starting at $4.99 per month. AvyPal asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for STAmina Apnea Trainer against 5.0 for AvyPal. That said, the two scores are not equally well evidenced: STAmina Apnea Trainer has 5.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 88% of STAmina Apnea Trainer's written reviews are positive against 100% of AvyPal's.

STAmina Apnea Trainer ships an update every 6 days, AvyPal every 17 months. The most recent releases landed on October 29, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | STAmina Apnea Trainer | AvyPal |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.9 (5.4K ratings)](https://appshunter.io/ios/app/stamina-apnea-trainer/id994874491/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/avypal/id1254906302/reviews)** |
| Number of ratings | **5.4K** | 1 |
| Positive reviews | 88.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 17 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 55 MB | 4 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Squarecrowd Apps, LLC](https://appshunter.io/developer/1438497992) | [Timothy Kelley](https://appshunter.io/developer/1107488020) |

## 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


### AvyPal

[App page](https://appshunter.io/ios/app/avypal/id1254906302)

This app assists backcountry travelers in identifying avalanche terrain using their phone's camera. It offers three modes to assess slope angles and avalanche risk with color-coded indicators and audible alerts for dangerous areas.

**Highlights:** Camera-based terrain analysis, Fall Line Mode for ascents/descents, Slope Mode for crossing terrain, GPS Mode with audible alerts, Color-coded risk indicators, Route choice decision support

**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 AvyPal free?

AvyPal costs $1.99, with no in-app purchases.

### Which has better reviews, STAmina Apnea Trainer or AvyPal?

AvyPal is rated higher. STAmina Apnea Trainer averages 4.9 out of 5 from 5.4K ratings, while AvyPal averages 5.0 from 1 ratings.

### Do STAmina Apnea Trainer or AvyPal have ads?

Neither STAmina Apnea Trainer nor AvyPal shows ads.

### Which is updated more often, STAmina Apnea Trainer or AvyPal?

STAmina Apnea Trainer ships an update every 6 days, and AvyPal every 17 months. Most recently, STAmina Apnea Trainer was updated on October 29, 2026 and AvyPal on October 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.*