# VO2 Max vs VO2 Max Calculator

The clearest difference is price: VO2 Max at Free against VO2 Max Calculator's $1.99. VO2 Max also leads on rating (3.8 vs 2.4) and update cadence (every 2 weeks vs every 7 months). VO2 Max Calculator's advantage is in-app purchases (none vs 3) and review sentiment (38% vs 26%). On ads and device support there is nothing between them.

VO2 Max is free to download; VO2 Max Calculator costs $1.99 up front. VO2 Max sells 3 in-app purchases, starting at $2.99 per month. VO2 Max Calculator asks for nothing beyond the download.

VO2 Max holds the better App Store score, 3.8 against 2.4. That said, the two scores are not equally well evidenced: VO2 Max has 131 ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 26% of VO2 Max's written reviews are positive against 38% of VO2 Max Calculator's, so the app with the better star average is not the one people write more warmly about.

VO2 Max ships an update every 2 weeks, VO2 Max Calculator every 7 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | VO2 Max | VO2 Max Calculator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.8 (131 ratings)](https://appshunter.io/ios/app/vo2-max-widget-notifications/id1394840943/reviews)** | [2.4 (14 ratings)](https://appshunter.io/ios/app/vo2-max-calculator/id1586812282/reviews) |
| Number of ratings | **131** | 14 |
| Positive reviews | 26.0% of reviews | **38.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 11 MB | 1 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Bernhard Hering](https://appshunter.io/developer/327542085) | [Theo Scott](https://appshunter.io/developer/691156625) |

## 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 |


### VO2 Max Calculator

[App page](https://appshunter.io/ios/app/vo2-max-calculator/id1586812282)

This app calculates your VO2 Max in just 3 minutes using a simple heart rate method. It's based on scientific research and provides general health information, not medical advice.

**Highlights:** Passive VO2 Max reading, 3-minute calculation, Based on scientific research, General health information, Video tutorial available

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is VO2 Max free?

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

### Is VO2 Max Calculator free?

VO2 Max Calculator costs $1.99, with no in-app purchases.

### Which has better reviews, VO2 Max or VO2 Max Calculator?

VO2 Max is rated higher. VO2 Max averages 3.8 out of 5 from 131 ratings, while VO2 Max Calculator averages 2.4 from 14 ratings.

### Do VO2 Max or VO2 Max Calculator have ads?

Neither VO2 Max nor VO2 Max Calculator shows ads.

### Which is updated more often, VO2 Max or VO2 Max Calculator?

VO2 Max ships an update every 2 weeks, and VO2 Max Calculator every 7 months. Most recently, VO2 Max was updated on October 26, 2026 and VO2 Max Calculator on October 24, 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.*