# ABG Expert vs Ventilator Training Alliance

The clearest difference is update cadence: Ventilator Training Alliance at fortnightly against ABG Expert's every 5 months. Ventilator Training Alliance also leads on ratings volume (74 vs 9). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for ABG Expert against 4.9 for Ventilator Training Alliance. That said, the two scores are not equally well evidenced: Ventilator Training Alliance has 74 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 100% of ABG Expert's written reviews are positive against 93% of Ventilator Training Alliance's.

ABG Expert ships an update every 5 months, Ventilator Training Alliance fortnightly. Both last shipped on October 20, 2026.

## The numbers

| Metric | ABG Expert | Ventilator Training Alliance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/abg-expert/id885575488/reviews) | **[4.9 (74 ratings)](https://appshunter.io/ios/app/ventilator-training-alliance/id1507082978/reviews)** |
| Number of ratings | 9 | **74** |
| Positive reviews | **100.0% of reviews** | 93.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 2 MB | 87 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Brian Dale Vander Werf MD Inc](https://appshunter.io/developer/1521935908) | [Allego, Inc.](https://appshunter.io/developer/640352525) |

## 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


### Ventilator Training Alliance

[App page](https://appshunter.io/ios/app/ventilator-training-alliance/id1507082978)

Access a comprehensive library of training materials and product information for medical professionals. This app offers free mobile access to how-to videos, manuals, and guides for critical ventilator equipment, developed in partnership with leading manufacturers.

**Highlights:** Multi-vendor training library, Product materials for medical professionals, How-to videos, Product manuals, Reference guides, Free mobile access

**In-app purchases:** none


## Frequently asked questions

### Is ABG Expert free?

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

### Is Ventilator Training Alliance free?

Ventilator Training Alliance is free to download, with no in-app purchases.

### Which has better reviews, ABG Expert or Ventilator Training Alliance?

Ventilator Training Alliance is rated higher. ABG Expert averages 4.8 out of 5 from 9 ratings, while Ventilator Training Alliance averages 4.9 from 74 ratings.

### Do ABG Expert or Ventilator Training Alliance have ads?

Neither ABG Expert nor Ventilator Training Alliance shows ads.

### Which is updated more often, ABG Expert or Ventilator Training Alliance?

ABG Expert ships an update every 5 months, and Ventilator Training Alliance fortnightly. Most recently, ABG Expert was updated on October 20, 2026 and Ventilator Training Alliance on October 20, 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.*