# VO2 STUDIO vs biotys

The clearest difference is iOS requirement: biotys at 13.0 against VO2 STUDIO's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

VO2 STUDIO ships an update every 3 months, biotys every 5 months. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | VO2 STUDIO | biotys |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Size | 210 MB | 12 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [VO2 TRAINING SA](https://appshunter.io/developer/1648270657) | [Amir Aiouaz](https://appshunter.io/developer/1462038680) |

## What reviewers say

### VO2 STUDIO

[App page](https://appshunter.io/ios/app/vo2-studio/id1237176267)

**Features:** macOS Compatibility

**In-app purchases:** none


### biotys

[App page](https://appshunter.io/ios/app/biotys/id6443545029)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VO2 STUDIO free?

VO2 STUDIO is free to download, with no in-app purchases.

### Is biotys free?

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

### Do VO2 STUDIO or biotys have ads?

Neither VO2 STUDIO nor biotys shows ads.

### Which is updated more often, VO2 STUDIO or biotys?

VO2 STUDIO ships an update every 3 months, and biotys every 5 months. Most recently, VO2 STUDIO was updated on September 20, 2026 and biotys on September 12, 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.*