Comparison

QABA vs Ionized Calcium Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

QABA

This medical app provides quantitative acid-base analysis by allowing users to input blood results. It calculates key variables like Strong Ion Difference and Net Unmeasured Ions, offering a color-coded results screen and a user guide. It's designed for medical professionals to aid in clinical decision-making.

Highlights
  • Quantitative Acid Base Analysis
  • Blood result input
  • Calculates SID, NUI, Atot
  • Color-coded results screen
  • Includes User Guide
  • Supports additional lab values
Features
Read full description

Quantitative Acid Base Analyser Download now and take your Acid Base Analysis to a new and quantitative level! Completely Free! ------------------------------------------------------------------ QABA is designed for Anaesthetic/ICU Consultants and Registrars, but may also be useful for other health and veterinary professionals QABA allows you to enter the blood results and quickly analyse the Acid Base disturbance as per a refinement of the Quantitative Acid Base Analysis introduced by P. Stewart in 1978 The App features: 'swipe' buttons for quick data entry, a colour coded results screen, with a text report & Gamblegram. The App also includes a brief introduction to understanding QABA and a User Guide. Just enter the levels of sodium, potassium, chloride, pH, CO2 and the App will calculate the results of the 3 independent variables that control blood plasma pH; CO2 Strong Ion Difference (SID) and Weak Acids (Atot), NB: Atot requires at least Albumin or Total Protein level. The app will also display the Net Unmeasured Ions (NUI). NUI is an advancement on the Strong Ion Gap used in Stewarts original equations which is comparable to the Anion Gap used in traditional acid base analysis. For added Analysis accuracy QABA can also accept the phosphate, ionised calcium, magnesium, sulphate, lactate, urate, albumin and total protein levels. This App is based on version 11.6 of the P Lloyd 'Quantitative Acid Base Analysis' in use at Hawkes Bay hospital, New Zealand. The App was written by Dr C Donald and supervised by Intensivists Dr M Park and Dr R Freebairn. ------------ Disclaimer Every effort has been made to make this anylser an accurate and useful clinical tool. However the results must be considered alongside the clinical context and the user assumes all liability/responsibility for the clinical decisions made based upon QABA's results

About

Ionized Calcium Calculator

Features
Read full description

This app provides an educational implementation of published ionized-calcium prediction formulas. It allows users to explore how input variables affect the output of these academic models. The app does not provide medical advice, diagnosis, treatment, or clinical measurement of any kind. It is intended solely for learning, research reference, and general information. Key Features • Explore model outputs based on published prediction equations • Adjust input variables and view calculated results for educational use • Simple interface for academic and non-clinical users • Fully offline — no data collection or storage

Screenshots

QABA4 screens
Ionized Calcium Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Ionized Calcium Calculator at every 4 days against QABA's every 34 months. QABA's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.2). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

QABA ships an update every 34 months, Ionized Calcium Calculator every 4 days. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
QABA versus Ionized Calcium Calculator: the parameters behind the verdict, then further details
ParameterQABAIonized Calcium Calculator
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews91.7% of reviews—
Number of ratings3 — better—
Update frequencyEvery 34 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better18.2
Further details — not scored
Size5 MB1 MB
Age rating12+4+
DeveloperCalum DonaldErnie Yap

In-app purchases

None

QABA

No in-app purchases

None

Ionized Calcium Calculator

No in-app purchases

Questions

Is QABA free?
QABA is free to download, with no in-app purchases.
Is Ionized Calcium Calculator free?
Ionized Calcium Calculator is free to download, with no in-app purchases.
Do QABA or Ionized Calcium Calculator have ads?
Neither QABA nor Ionized Calcium Calculator shows ads.
Which is updated more often, QABA or Ionized Calcium Calculator?
QABA ships an update every 34 months, and Ionized Calcium Calculator every 4 days. Most recently, QABA was updated on October 20, 2026 and Ionized Calcium Calculator on October 28, 2026.

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