# QABA — user reviews

> 12 indexed App Store user reviews of QABA by Calum Donald, rated 5.00/5 from 3 ratings.

- Source: https://appshunter.io/ios/app/qaba/id872471322/reviews
- App overview in markdown: https://appshunter.io/ios/app/qaba/id872471322.md
- Rating breakdown: 5★ 3 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (10 lowest-rated)

### 2/5 — Doesn't open

*2015-12-07, version 1.01*

Hey Callum, qaba doesn't open up, keeps crashing

### 4/5 — Very convenient way to apply the Stewart's method

*2015-01-19, version 1.01*

A really useful way to apply the Stewart's approach at the bedside. Thanks! Quirky colours, but the best mobile implementation I've seen so far.

### 5/5 — Exceptional tool

*2025-07-03, version 1.3*

QABA makes quantitative acid base analysis practical and useable for the bedside clinical team . Provides an excellent platform to analysis acid base abnormalities sizing rhe Stewart  method

### 5/5 — Quantitative Acid Base Analysis

*2022-03-14, version 1.2*

A useful app that allows quick calculation of the physio-chemical approach to acid-base at the bedside.

### 5/5 — Stewart approach

*2018-03-19, version 1.2*

quick to use once you get used to it. Very useful to have this available on the iPhone. Best application I’ve found so far of the Stewart approach

### 5/5 — Great application of the Stewart's approach

*2015-03-25, version 1.01*

Have been looking for a while how to apply Stewart's at the bedside. Thanks for making qaba available. NUI is also interesting advancement I would like to look into more

### 5/5 — The best acid-base app

*2014-09-26, version 1.01*

This is so far the best app for a quick acid base analysis based on Stewart's approach. well designed. Thank you so much

### 5/5 — Essential for any junior ICU trainee

*2014-05-07, version 1.0*

A quick and easy way to facilitate decisions relating to metabolic disturbance

Easy to use and interpret

### 5/5 — Best tool for QABQ

*2014-05-07, version 1.0*

So useful, great app, easy to use

### 5/5 — Epic

*2014-05-07, version 1.0*

Has made a huge difference to my practice

## Most praised reviews (2 highest-rated)

### 5/5 — Acid base

*2014-05-07, version 1.0*

Easy to use, great explanations and now portable!

### 5/5 — Great app

*2014-05-07, version 1.0*

Great app for anyone wanting to use acid base

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-08.*