# Marker · Blood Test Tracker vs BioScore

The clearest difference is update cadence: BioScore at every 3 days against Marker · Blood Test Tracker's every 3 weeks. BioScore also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Marker · Blood Test Tracker sells 2 in-app purchases, starting at $24.99 per year and BioScore sells 2 in-app purchases, starting at $17.90 per 7 days. Whichever you choose, the download price is not the number that matters.

Marker · Blood Test Tracker ships an update every 3 weeks, BioScore every 3 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Marker · Blood Test Tracker | BioScore |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 9 MB | 80 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Jan Zellerhoff](https://appshunter.io/developer/1878750371) | [SHM GLOBAL LLC](https://appshunter.io/developer/6800359899) |

## What reviewers say

### Marker · Blood Test Tracker

[App page](https://appshunter.io/ios/app/marker-blood-test-tracker/id6791303820)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marker Pro (Annual) | $24.99 | per year |
| Marker Pro (Lifetime) | $44.99 | one-time |


### 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 Marker · Blood Test Tracker free?

Marker · Blood Test Tracker is free to download, with in-app purchases available.

### Is BioScore free?

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

### Do Marker · Blood Test Tracker or BioScore have ads?

Neither Marker · Blood Test Tracker nor BioScore shows ads.

### Which is updated more often, Marker · Blood Test Tracker or BioScore?

Marker · Blood Test Tracker ships an update every 3 weeks, and BioScore every 3 days. Most recently, Marker · Blood Test Tracker was updated on October 10, 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.*