# freedive STA vs AI Apnea Trainer

The clearest difference is ads: AI Apnea Trainer at none against freedive STA's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

freedive STA ships an update every 2 weeks, AI Apnea Trainer every 11 days. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | freedive STA | AI Apnea Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Size | 30 MB | 18 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Stridelab LLC](https://appshunter.io/developer/1794462570) | [hayato yasuhisa](https://appshunter.io/developer/1873491175) |

## What reviewers say

### freedive STA

[App page](https://appshunter.io/ios/app/freedive-sta/id6741502506)

**In-app purchases:** none


### AI Apnea Trainer

[App page](https://appshunter.io/ios/app/ai-apnea-trainer/id6758535310)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is freedive STA free?

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

### Is AI Apnea Trainer free?

AI Apnea Trainer is free to download, with no in-app purchases.

### Do freedive STA or AI Apnea Trainer have ads?

freedive STA shows ads; AI Apnea Trainer does not.

### Which is updated more often, freedive STA or AI Apnea Trainer?

freedive STA ships an update every 2 weeks, and AI Apnea Trainer every 11 days. Most recently, freedive STA was updated on September 8, 2026 and AI Apnea Trainer on September 10, 2026.

---

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