QABA vs Triaj
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Quantitative Acid Base Analysis
- Blood result input
- Calculates SID, NUI, Atot
- Color-coded results screen
- Includes User Guide
- Supports additional lab values
Read full descriptionHide 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
Triaj
This cloud-based system offers healthcare professionals advanced clinical decision support for pediatric and adolescent patient care. It provides best practices and treatment guidance accessible anytime, anywhere. It is designed exclusively for medical professionals.
- Advanced clinical decision support
- Pediatric and adolescent patient care
- Best practice guidance
- Cloud-based accessibility
- Treatment recommendations
Read full descriptionHide full description
Triaj is a Health Tech APP that will revolutionize the diagnosis, treatment, and care of pediatric and adolescent patients through an advanced clinical decision support system for healthcare professionals, that provides best practice, patient treatment that is available anywhere, anytime as a cloud-based, communications network solution. If you are not a health care professional, you should promptly contact your own health care provider regarding any medical conditions or medical questions that you have. Triaj is now a free app. The "Terms of Use" can be found at: https://triaj.com/terms-of-service
Screenshots
Verdict
The clearest difference is update cadence: Triaj at monthly against QABA's every 34 months. Triaj also leads on ratings volume (24 vs 3) and review sentiment (100% vs 92%). QABA's advantage is iOS requirement (12.0 vs 14.0). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
QABA holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Triaj has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 92% of QABA's written reviews are positive against 100% of Triaj's, so the app with the better star average is not the one people write more warmly about.
QABA ships an update every 34 months, Triaj monthly. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | QABA | Triaj |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.8 (24 ratings) |
| Positive reviews | 91.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 24 — better |
| Update frequency | Every 34 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 5 MB | 40 MB |
| Age rating | 12+ | 17+ |
| Developer | Calum Donald | Triaj, Inc. |
Customer experience
QABA
Triaj
In-app purchases
QABA
No in-app purchases
Triaj
No in-app purchases









