# Just VO2 Max vs BioScore

The clearest difference is in-app purchases: Just VO2 Max at none against BioScore's 2. BioScore's advantage is ads (none vs shown) and update cadence (every 3 days vs every 6 days). On price and device support there is nothing between them.

Both are free to download. BioScore sells 2 in-app purchases, starting at $17.90 per 7 days. Just VO2 Max asks for nothing beyond the download.

Just VO2 Max ships an update every 6 days, BioScore every 3 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Just VO2 Max | BioScore |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/just-vo2-max/id6790672784/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 14 MB | 80 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Cuprea s.r.o.](https://appshunter.io/developer/6790557326) | [SHM GLOBAL LLC](https://appshunter.io/developer/6800359899) |

## What reviewers say

### Just VO2 Max

[App page](https://appshunter.io/ios/app/just-vo2-max/id6790672784)

Displays your most recent VO2 Max reading from Apple Health directly on your Apple Watch face. It refreshes automatically when new data is available after your workout, keeping your health information private and on your device.

**Highlights:** VO2 Max display, Apple Health integration, Automatic refresh, On-device data storage, Read-only data access

**Features:** Apple Watch app

**In-app purchases:** none


### BioScore

[App page](https://appshunter.io/ios/app/bioscore-blood-work-analyzer/id6800359895)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BioScore Pro Weekly | $17.90 | per 7 days |
| BioScore Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is Just VO2 Max free?

Just VO2 Max is free to download, with no in-app purchases.

### Is BioScore free?

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

### Do Just VO2 Max or BioScore have ads?

Just VO2 Max shows ads; BioScore does not.

### Which is updated more often, Just VO2 Max or BioScore?

Just VO2 Max ships an update every 6 days, and BioScore every 3 days. Most recently, Just VO2 Max was updated on October 24, 2026 and BioScore on October 6, 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.*