# VO2 Max vs Stamm Fit

The clearest difference is in-app purchases: Stamm Fit at none against VO2 Max's 3. Stamm Fit also leads on iOS requirement (12.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. VO2 Max sells 3 in-app purchases, starting at $2.99 per month. Stamm Fit asks for nothing beyond the download.

VO2 Max ships an update every 2 weeks, Stamm Fit fortnightly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | VO2 Max | Stamm Fit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (131 ratings)](https://appshunter.io/ios/app/vo2-max-widget-notifications/id1394840943/reviews)** | — |
| Number of ratings | **131** | — |
| Positive reviews | 26.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 61 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Bernhard Hering](https://appshunter.io/developer/327542085) | [Nelle & Bendlage IT-Dienstleistungs- und Beratungs UG](https://appshunter.io/developer/1653740843) |

## What reviewers say

### VO2 Max

[App page](https://appshunter.io/ios/app/vo2-max-widget-notifications/id1394840943)

Track your body's oxygen absorption at peak effort with detailed insights and performance estimates for running and cycling. Visualize trends, compare personal bests, and understand your cardio fitness level with a redesigned dashboard and Apple Watch integration.

**Highlights:** VO2 max estimation for running and cycling, Performance estimates (W/kg, FTP), Redesigned dashboard with trends and personal bests, Interactive charts with customizable date ranges, Apple Watch complications and iPhone widgets, Cardio fitness level comparison by age and sex

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $22.99 | per year |
| Lifetime Access | $79.99 | one-time |


### Stamm Fit

[App page](https://appshunter.io/ios/app/stamm-fit/id6446196688)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VO2 Max free?

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

### Is Stamm Fit free?

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

### Do VO2 Max or Stamm Fit have ads?

Neither VO2 Max nor Stamm Fit shows ads.

### Which is updated more often, VO2 Max or Stamm Fit?

VO2 Max ships an update every 2 weeks, and Stamm Fit fortnightly. Most recently, VO2 Max was updated on October 29, 2026 and Stamm Fit on October 30, 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.*