# OxyBoost vs AI Apnea Trainer

The clearest difference is in-app purchases: AI Apnea Trainer at none against OxyBoost's 3. AI Apnea Trainer also leads on iOS requirement (17.0 vs 26.2). OxyBoost's advantage is update cadence (every 2 days vs every 11 days). On price, ads and device support there is nothing between them.

Both are free to download. OxyBoost sells 3 in-app purchases, starting at $1.99 per month. AI Apnea Trainer asks for nothing beyond the download.

OxyBoost ships an update every 2 days, AI Apnea Trainer every 11 days. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | OxyBoost | AI Apnea Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 11 days |
| Size | 23 MB | 18 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Artem Verbat](https://appshunter.io/developer/1787150868) | [hayato yasuhisa](https://appshunter.io/developer/1873491175) |

## What reviewers say

### OxyBoost

[App page](https://appshunter.io/ios/app/oxyboost-apnea-trainer/id6739809272)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $1.99 | per month |
| Pro (Yearly) | $11.99 | per year |
| Pro (Yearly) | $19.99 | per year |


### 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 OxyBoost free?

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

### Is AI Apnea Trainer free?

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

### Do OxyBoost or AI Apnea Trainer have ads?

Neither OxyBoost nor AI Apnea Trainer shows ads.

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

OxyBoost ships an update every 2 days, and AI Apnea Trainer every 11 days. Most recently, OxyBoost was updated on September 15, 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.*