# ABG Expert vs I.V. Fluids

The clearest difference is rating: I.V. Fluids at 5.0 against ABG Expert's 4.8. I.V. Fluids also leads on iOS requirement (9.1 vs 13.0). ABG Expert's advantage is ratings volume (9 vs 2). On price, review sentiment, update cadence 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.

I.V. Fluids holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

ABG Expert ships an update every 5 months, I.V. Fluids every 4 months. The most recent releases landed on October 20, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ABG Expert | I.V. Fluids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/abg-expert/id885575488/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/iv-fluids/id1469174467/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 2 MB | 37 MB |
| Requires iOS | 13.0 | **9.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| 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


### I.V. Fluids

[App page](https://appshunter.io/ios/app/iv-fluids/id1469174467)

This app offers a simplified approach to initial fluid management for pediatric patients. It aims to demystify the complex subject of fluid and electrolytes with a straightforward solution.

**Highlights:** Initial fluid management, Pediatric focus, Electrolyte calculations, Simplified interface, Complex subject demystification

**Features:** macOS Compatibility, 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 I.V. Fluids free?

I.V. Fluids is free to download, with no in-app purchases.

### Which has better reviews, ABG Expert or I.V. Fluids?

I.V. Fluids is rated higher. ABG Expert averages 4.8 out of 5 from 9 ratings, while I.V. Fluids averages 5.0 from 2 ratings.

### Do ABG Expert or I.V. Fluids have ads?

Neither ABG Expert nor I.V. Fluids shows ads.

### Which is updated more often, ABG Expert or I.V. Fluids?

ABG Expert ships an update every 5 months, and I.V. Fluids every 4 months. Most recently, ABG Expert was updated on October 20, 2026 and I.V. Fluids on September 27, 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.*