Acid-Base Calculator 17+


Designed for iPad

    • 4.5 • 4 Ratings
    • $3.99



This application has been developed to facilitate the quantitative approach to acid-base interpretation at the bedside. This valuable method is now available to all healthcare professionals via this application, having been previously limited to the few who were prepared to put the time and effort into understanding the detailed Stewart’s equations. Even when familiar with this method routine use at the bedside was limited by the complicated, time consuming formulae. In contrast, in a matter of seconds this application will generate results for the following:

1) Acid-Base Status
2) Individual Ion’s Effect on Base Excess
3) Apparent Strong Ion Difference
4) Effective Strong Ion Difference
5) Strong Ion Gap
6) Gamblegram
7) Anion Gap
8) Corrected Anion Gap
9) Osmolar Gap

This application improves patient care by enabling the healthcare professional to quickly identify an acid-base disorder and initiate timely therapy directed towards the underlying cause. Acid-Base Calculator is internationally friendly allowing laboratory results to be entered using a variety of units.

Although the authors/ITDCS have undertaken every effort to maintain the accuracy of the information contained in this application, the authors/ITDCS make no representations or warranties with respect to this iphone application or whether any of the websites with which it is linked is accurate, complete or current."

In no event shall the authors/ITDCS be liable to any party for any damages, included but not limited to, direct, indirect, special, incidental, or consequential damages, including loss of profits, arising out of the use of this application, even if the authors/ITDCS have been advised of the possibility of such damage. The authors/ITDCS specifically disclaim any warranties, included, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. This application provided hereunder is on an "as is" basis, and the authors/ITDCS have no obligation to provide maintenance, support, updates, enhancements, or modifications.

© ITDCS Ltd. 2010

All rights reserved. The authors/ITDCS claim copyright ownership of all information stored in this application, unless expressly stated otherwise. No information stored on this application (including text, videos, audio presentations and calculators) may be reproduced, modified or used for commercial or other purposes (except as legally allowed for personal and educational use) unless the authors/ITDCS give their prior written consent to the intended use.

What’s New

Version 1.3

This app has been updated by Apple to display the Apple Watch app icon.

Changes to fix issues cased by iOS 10

Ratings and Reviews

4.5 out of 5
4 Ratings

4 Ratings

Anonymous 19397575 ,

Good tool to assist great ICU doctors esp. Stewart/strong ion

Graphical display of metabolic and electrolyte data very helpful in evaluating acid-base data, especially adjusted data. Wish it included bicarbonate gap-gap. Do not expect this app (or any other!) to correlate acid base with clinical data, still needs to be paired with professional human brain.

Cr1tcaredoc ,


Does not calculate mixed acid base disorders. Misses diagnoses. Plenty of free apps or online calculators readily available.

aess06 ,


Does not calculate complex disorders. Totally inaccurate. Waste of money.

App Privacy

The developer, ITDCS Ltd, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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