# Blood Test Tracker vs Marker · Blood Test Tracker

The clearest difference is update cadence: Marker · Blood Test Tracker at every 3 weeks against Blood Test Tracker's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Blood Test Tracker sells 3 in-app purchases, starting at $5.99 per 7 days and Marker · Blood Test Tracker sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

Blood Test Tracker ships an update every 2 months, Marker · Blood Test Tracker every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Blood Test Tracker | Marker · Blood Test Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 3 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) | [Jan Zellerhoff](https://appshunter.io/developer/1878750371) |

## What reviewers say

### Blood Test Tracker

[App page](https://appshunter.io/ios/app/blood-test-tracker-lab-log/id6772258766)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Glucose Trends Weekly | $5.99 | per 7 days |
| Thyroid & TSH Yearly | $29.99 | per year |
| Cholesterol Lifetime | $59.99 | one-time |


### 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 |


## Frequently asked questions

### Is Blood Test Tracker free?

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

### Is Marker · Blood Test Tracker free?

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

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

Neither Blood Test Tracker nor Marker · Blood Test Tracker shows ads.

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

Blood Test Tracker ships an update every 2 months, and Marker · Blood Test Tracker every 3 weeks. Most recently, Blood Test Tracker was updated on October 25, 2026 and Marker · Blood Test Tracker on October 25, 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.*