# Stellar Intervals vs VO2Pro

The clearest difference is in-app purchases: Stellar Intervals at none against VO2Pro's 2. Stellar Intervals also leads on iOS requirement (15.1 vs 26.0). VO2Pro's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. VO2Pro sells 2 in-app purchases, starting at $3.99 per month. Stellar Intervals asks for nothing beyond the download.

## The numbers

| Metric | Stellar Intervals | VO2Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vo2pro-hiit-trainer/id6780353919/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Monetization | — | Freemium |
| Size | 41 MB | 9 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 12+ | 17+ |
| Developer | [Garage Projects AB](https://appshunter.io/developer/6774685578) | [敏 周](https://appshunter.io/developer/1033391298) |

## What reviewers say

### Stellar Intervals

[App page](https://appshunter.io/ios/app/stellar-intervals/id6774685576)

**Features:** macOS Compatibility

**In-app purchases:** none


### VO2Pro

[App page](https://appshunter.io/ios/app/vo2pro-hiit-trainer/id6780353919)

Improve your cardiovascular fitness with science-backed interval training and live heart-rate coaching. Offers proven protocols like Norwegian 4x4 and Tabata, with custom workout options and progress tracking. Your health data remains private on your device and in Apple Health.

**Highlights:** Live Apple Watch heart rate coaching, Proven VO2 max building protocols, Custom interval workout builder, VO2 max progress projection, Private health data storage, No ads

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VO2Pro Max Monthly | $3.99 | per month |
| VO2Pro Max Yearly | $29.99 | per year |


## Frequently asked questions

### Is Stellar Intervals free?

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

### Is VO2Pro free?

VO2Pro is free to download, with in-app purchases available.

### Do Stellar Intervals or VO2Pro have ads?

Stellar Intervals shows ads; VO2Pro does not.

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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.*