# Dr. Rajka vs VO2 Max Estimator

The clearest difference is price: Dr. Rajka at Free against VO2 Max Estimator's $0.99. Dr. Rajka also leads on iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Dr. Rajka is free to download; VO2 Max Estimator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Dr. Rajka | VO2 Max Estimator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/vo2-max-estimator/id6499062236/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | — | Paid |
| Size | 55 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [MB 360, LLC](https://appshunter.io/developer/1726635551) | [H3 Apps, LLC](https://appshunter.io/developer/598620927) |

## What reviewers say

### Dr. Rajka

[App page](https://appshunter.io/ios/app/dr-rajka/id1611590884)

**Features:** macOS Compatibility

**In-app purchases:** none


### VO2 Max Estimator

[App page](https://appshunter.io/ios/app/vo2-max-estimator/id6499062236)

Estimate your cardiovascular fitness using a simple 12-minute run test. Compare your results to others in your age and sex group to gauge your fitness level and track progress over time. Share your results with friends via email or text.

**Highlights:** VO2 Max estimation, Cooper test based, Fitness level comparison, Progress tracking, Shareable results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dr. Rajka free?

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

### Is VO2 Max Estimator free?

VO2 Max Estimator costs $0.99, with no in-app purchases.

### Do Dr. Rajka or VO2 Max Estimator have ads?

Neither Dr. Rajka nor VO2 Max Estimator 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.*