Calculate by QxMD vs Quick Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculate by QxMD
This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.
- Over 200 medical calculators
- Clinical decision support tools
- Cardiology, internal medicine, and more
- Knowledge translation from research
- Question Flow technology
- PubMed & Read integration
- SI and Imperial units
Read full descriptionHide full description
From the developer of 'Read by QxMD', 'The ECG Guide' and 'Pedi STAT' comes 'Calculate', a next-generation clinical calculator and decision support tool, freely available to the medical community. "We recommend medical users try the free Calculate by QxMD first..." -from iMedicalApps review "The best free Medical Calculator apps for the iPhone" 'Calculate' highlights tools which impact clinical practice either by simplifying diagnosis, clarifying treatment options or displaying prognosis. Helping you make decisions, not just calculate numbers... Features • Developed by a collaboration of clinician experts from diverse backgrounds • Point-of-care tools in the areas of cardiology, internal medicine, primary care, nephrology, hematology, hepatology, gastroenterology, emergency medicine, oncology, orthopedics, critical care/ICU, ENT, radiology, rheumatology, mental health, respirology, neurology, pediatrics, infectious disease, neurosurgery, general surgery, vascular surgery, and obstetrics. • Converts recent research publications into practical handheld tools - knowledge translation at its best • Automatically adapts to your clinical practice • Unique ‘Question Flow’ technology gets you answers, fast • Detailed references with PubMed & Read integration • Comprehensive and insightful results • Elegant design and intuitive interface • SI and Imperial units More than 200 unique calculators and decision support tools While too extensive to list them all, here is a small sampling of included content: Guide treatment • Determine cardiovascular risk using ACC/AHA, Framingham, Gupta and VQI Cardiac Risk Index • CHADS2 & CHA2DS2-VASc to guide treatment in atrial fibrillation • Understand bleeding risk in atrial fibrillation using HAS-BLED & OBRI • TIMI risk score in ACS • CIWA in alcohol withdrawal • Rule of 9s & Parkland formula in burns • Water deficit in hypernatremia • Timing of surgery with Aortic Stenosis Risk Score • Risk stratify pneumonia (CURB-65, PORT) • NIH Stroke Scale in acute stroke • Imaging in possible subarachnoid hemorrhage with Ottawa SAH Rule Determine Prognosis • Cirrhosis (MELD, Child-Pugh) • Chronic Kidney Disease (Kidney Failure Risk Equation) • Heart failure • Lymphoma (NCCN-IPI, IPI24, R-IPI) • Myelodysplastic Syndrome (IPSS-R, WPSS) • Myeloma (ISS, R-ISS) • Hemodialysis • COPD (Bode) • Pancreatitis (BISAP, Ranson's) • Cardiac surgery (Euroscore II, Cleveland Clinic, Mehta) • Critical care (APACHE II, SOFA) • Neurologic outcome (DRAGON, CAM-ICU, modified Rankin, FOUR score, Hunt & Hess) Calculate • Ideal body weight, BMI and BSA • Due date and gestational age • Extensive formula used in echocardiography and invasive hemodynamic monitoring • Kt/V in dialysis patients • eGFR with CKD-EPI, MDRD & Schwartz • A-a gradient Classify • Angina (CCS) • Congestive heart failure (NYHA) Screen • Diabetes • Breast cancer Reduce and predict perioperative complications • WHO Surgical Safety Checklist • Predictive models for cardiac surgery, vascular surgery and coronary angiography • Postoperative Respiratory Failure Risk score Manage • Head, neck, ankle and knee injuries (NEXUS, Ottawa ankle/knee, Canadian C-spine and CT head rules) • DVT and PE (PERC, Wells, PESI) • Pulmonary nodules • TIA (ABCD2) Stage • Lung cancer • Renal cell carcinoma • Head & neck cancers Understand • TTKG in hypokalemia and hyperkalemia • Dermatomes Diagnose • Heparin Induced Thrombocytopenia • Infective Endocarditis • ARDS • Autoimmune Hepatitis • Sleep disorder (Epworth Sleepiness Scale) And much, much more... Researchers, contact us to see your research in our app at contact@qxmd.com Founded my medical professionals, QxMD Software is dedicated to creating high quality, point-of-care tools for practicing health care professionals. Recognized as a leading developer of free medical software for mobile devices, QxMD develops content in cooperation with expert physicians from their respective fields.
Quick Lab
Access lab results for doctors and vets on the go. View test results within minutes of execution. Stay updated with lab news, events, and collection center information.
- Access lab results remotely
- View results within minutes
- Lab news and updates
- Information on events
- Locate collection centers
Read full descriptionHide full description
Quick Lab allows doctors and vets to have access to their lab results whenever and wherever they want. You can view results within minutes after the test execution in the lab. Other information about our labs is available like Newsletters, Events, Laboratories and Collection Centers.
Screenshots
Verdict
The clearest difference is review sentiment: Calculate by QxMD at 86% against Quick Lab's 50%. Calculate by QxMD also leads on ratings volume (5.1K vs 3). Quick Lab's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases and device support 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.
Quick Lab holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Calculate by QxMD has 5.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 86% of Calculate by QxMD's written reviews are positive against 50% of Quick Lab's, so the app with the better star average is not the one people write more warmly about.
Calculate by QxMD ships an update every 6 weeks, Quick Lab every 2 months. The most recent releases landed on November 1, 2026 and October 18, 2026 respectively.
| Parameter | Calculate by QxMD | Quick Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5.1K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 86.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 5.1K — better | 3 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 118 MB | 49 MB |
| Age rating | 17+ | 17+ |
| Developer | WebMD | A.M.L. B.V. BVBA |
Customer experience
Calculate by QxMD
Quick Lab
Bugs and requests
Calculate by QxMD
Reported bugs
5 issues- App freezes when using multiple calculators
- Unable to add items to favorites list
- Unable to see calculation results after input
- App crashes on startup without internet connection
- Landscape mode not working on iPad
Requested features
5 requests- Dark mode option
- Ability to save/favorite frequently used calculators
- Integration with electronic health records
- Metric to imperial unit conversion
- More specialized calculators (e.g., opioid equivalence, pediatric BP)
Quick Lab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculate by QxMD
No in-app purchases
Quick Lab
No in-app purchases
Questions
Is Calculate by QxMD free?
Is Quick Lab free?
Which has better reviews, Calculate by QxMD or Quick Lab?
Do Calculate by QxMD or Quick Lab have ads?
Which is updated more often, Calculate by QxMD or Quick Lab?
Other comparisons















