# ABG Expert vs Complete ABG

The clearest difference is update cadence: Complete ABG at every 3 weeks against ABG Expert's every 5 months. Complete ABG also leads on rating (5.0 vs 4.8) and iOS requirement (9.0 vs 13.0). ABG Expert's advantage is ratings volume (9 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Complete ABG holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ABG Expert has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

ABG Expert ships an update every 5 months, Complete ABG every 3 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ABG Expert | Complete ABG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/abg-expert/id885575488/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/complete-abg/id993718869/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 2 MB | 45 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 17+ |
| Developer | [Brian Dale Vander Werf MD Inc](https://appshunter.io/developer/1521935908) | [Satish Deopujari](https://appshunter.io/developer/1180072702) |

## 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


### Complete ABG

[App page](https://appshunter.io/ios/app/complete-abg/id993718869)

This medical app simplifies Arterial Blood Gas (ABG) diagnosis by focusing on the Henderson-Hasselbalch equation. It offers bedside interpretation, extended analysis with various gap calculations, and a flowchart for diagnostic approaches.

**Highlights:** Bedside ABG interpretation, Extended ABG analysis, Anion gap calculation, Delta Delta gap calculation, Osmolar gap calculation, Flowchart diagnostic algorithm

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ABG Expert free?

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

### Is Complete ABG free?

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

### Which has better reviews, ABG Expert or Complete ABG?

Complete ABG is rated higher. ABG Expert averages 4.8 out of 5 from 9 ratings, while Complete ABG averages 5.0 from 1 ratings.

### Do ABG Expert or Complete ABG have ads?

Neither ABG Expert nor Complete ABG shows ads.

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

ABG Expert ships an update every 5 months, and Complete ABG every 3 weeks. Most recently, ABG Expert was updated on October 3, 2026 and Complete ABG on October 10, 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.*