# ABG Expert vs GenoTrackr

The clearest difference is in-app purchases: ABG Expert at none against GenoTrackr's 2. ABG Expert also leads on iOS requirement (13.0 vs 18.5). GenoTrackr's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. GenoTrackr sells 2 in-app purchases, starting at $5.99 per month. ABG Expert asks for nothing beyond the download.

ABG Expert ships an update every 5 months, GenoTrackr every 2 months. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ABG Expert | GenoTrackr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (9 ratings)](https://appshunter.io/ios/app/abg-expert/id885575488/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 2 MB | 13 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Brian Dale Vander Werf MD Inc](https://appshunter.io/developer/1521935908) | [Ralf Rueckert](https://appshunter.io/developer/1849428526) |

## What reviewers say

### ABG Expert

[App page](https://appshunter.io/ios/app/abg-expert/id885575488)

This medical tool provides accurate and flexible acid-base analysis for healthcare professionals. It offers detailed explanations, customizable ranges, and advanced features like anion gap correction and A-a gradient adjustments for various patient conditions and locations.

**Highlights:** Validated accuracy with real-world testing, Plausibility checks for physiologically impossible data, Automatic anion gap correction with albumin, Detailed explanations with equations, Separate or combined analysis of ABG, anion gap, A-a gradient, Customizable normal ranges for anion gap and delta gap, Age and barometric pressure adjustments for A-a gradient, Support for SI and non-SI units, Color-coded results and differential diagnoses, Adjustments for chronic respiratory conditions

**Features:** macOS Compatibility

**In-app purchases:** none


### GenoTrackr

[App page](https://appshunter.io/ios/app/genotrackr/id6756603585)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GenoTrackr Pro Monthly | $5.99 | per month |
| GenoTrackr Pro 1 Year | $59.99 | per year |


## Frequently asked questions

### Is ABG Expert free?

ABG Expert is free to download, with no in-app purchases.

### Is GenoTrackr free?

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

### Do ABG Expert or GenoTrackr have ads?

Neither ABG Expert nor GenoTrackr shows ads.

### Which is updated more often, ABG Expert or GenoTrackr?

ABG Expert ships an update every 5 months, and GenoTrackr every 2 months. Most recently, ABG Expert was updated on October 20, 2026 and GenoTrackr 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.*