# VO2 Max Tracker vs SpeedClimb Stopwatch

The clearest difference is in-app purchases: SpeedClimb Stopwatch at none against VO2 Max Tracker's 6. SpeedClimb Stopwatch also leads on iOS requirement (11.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. VO2 Max Tracker sells 6 in-app purchases, starting at $4.99 per 7 days. SpeedClimb Stopwatch asks for nothing beyond the download.

## The numbers

| Metric | VO2 Max Tracker | SpeedClimb Stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/vo2-max-tracker-zephyrus/id6450862734/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Freemium | — |
| Size | 17 MB | 28 MB |
| Requires iOS | 18.6 | **11.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Havard Tryman](https://appshunter.io/developer/1662964293) | [Joscha von Andrian](https://appshunter.io/developer/1680032240) |

## What reviewers say

### VO2 Max Tracker

[App page](https://appshunter.io/ios/app/vo2-max-tracker-zephyrus/id6450862734)

Measure your cardio fitness (VO₂ max) using a treadmill test and track your progress. Create or select from pre-made HIIT workouts, with real-time guidance on target zones. Integrates with Apple Watch and Bluetooth heart rate monitors.

**Highlights:** VO₂ max testing on treadmills, HIIT workout creation and selection, Real-time target zone guidance, Apple Watch and heart rate monitor integration, Workout history with heart rate graphs, iCloud data synchronization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $4.99 | per 7 days |
| Pro (Monthly) | $7.99 | per month |
| Pro | $8.99 | per 7 days |
| Pro | $24.99 | per year |
| Pro (Yearly) | $24.99 | per year |
| Pro (Yearly) | $59.99 | per year |


### SpeedClimb Stopwatch

[App page](https://appshunter.io/ios/app/speedclimb-stopwatch/id6469708441)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VO2 Max Tracker free?

VO2 Max Tracker is free to download, with in-app purchases available.

### Is SpeedClimb Stopwatch free?

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

### Do VO2 Max Tracker or SpeedClimb Stopwatch have ads?

Neither VO2 Max Tracker nor SpeedClimb Stopwatch shows ads.

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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.*