# Freediving Apnea Exercise vs OxyBoost

The clearest difference is update cadence: OxyBoost at every 2 days against Freediving Apnea Exercise's every 3 weeks. Freediving Apnea Exercise's advantage is iOS requirement (18.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Freediving Apnea Exercise sells 2 in-app purchases, starting at $5.99 per month and OxyBoost sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Freediving Apnea Exercise ships an update every 3 weeks, OxyBoost every 2 days. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Freediving Apnea Exercise | OxyBoost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/freediving-apnea-exercise/id6479372267/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 23 MB |
| Requires iOS | **18.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Taras Chernyshenko](https://appshunter.io/developer/1308198759) | [Artem Verbat](https://appshunter.io/developer/1787150868) |

## What reviewers say

### Freediving Apnea Exercise

[App page](https://appshunter.io/ios/app/freediving-apnea-exercise/id6479372267)

Enhance your breath-hold capacity and underwater performance with specialized CO2 and O2 training tables. This app also offers box breathing exercises for stress management and improved focus. Perfect for freedivers, snorkelers, and surfers looking to extend their time in the water.

**Highlights:** CO2 and O2 training tables, Progress tracking, User-friendly interface, Daily reminders, Box breathing exercises, Stress management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $5.99 | per month |
| Yearly Membership | $29.99 | per year |


### 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 |


## Frequently asked questions

### Is Freediving Apnea Exercise free?

Freediving Apnea Exercise is free to download, with in-app purchases available.

### Is OxyBoost free?

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

### Do Freediving Apnea Exercise or OxyBoost have ads?

Neither Freediving Apnea Exercise nor OxyBoost shows ads.

### Which is updated more often, Freediving Apnea Exercise or OxyBoost?

Freediving Apnea Exercise ships an update every 3 weeks, and OxyBoost every 2 days. Most recently, Freediving Apnea Exercise was updated on September 8, 2026 and OxyBoost on September 15, 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.*