Comparison

Calculate by QxMD vs Quick Lab

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

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.

Highlights
  • Access lab results remotely
  • View results within minutes
  • Lab news and updates
  • Information on events
  • Locate collection centers
Read 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

Calculate by QxMD4 screens
Quick Lab2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Calculate by QxMD versus Quick Lab: the parameters behind the verdict, then further details
ParameterCalculate by QxMDQuick Lab
PriceFreeFree
Rating4.8 (5.1K ratings)5.0 (3 ratings) — better
Positive reviews86.5% of reviews — better50.0% of reviews
Number of ratings5.1K — better3
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size118 MB49 MB
Age rating17+17+
DeveloperWebMDA.M.L. B.V. BVBA

Customer experience

Calculate by QxMD

All ratings5,100 ratings
Positive96.0%
Neutral2.2%
Negative1.8%
Written reviews776 reviews
Positive86.5%
Neutral5.5%
Negative8.0%

Quick Lab

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

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

None

Calculate by QxMD

No in-app purchases

None

Quick Lab

No in-app purchases

Questions

Is Calculate by QxMD free?
Calculate by QxMD is free to download, with no in-app purchases.
Is Quick Lab free?
Quick Lab is free to download, with no in-app purchases.
Which has better reviews, Calculate by QxMD or Quick Lab?
Quick Lab is rated higher. Calculate by QxMD averages 4.8 out of 5 from 5.1K ratings, while Quick Lab averages 5.0 from 3 ratings.
Do Calculate by QxMD or Quick Lab have ads?
Calculate by QxMD shows ads; Quick Lab does not.
Which is updated more often, Calculate by QxMD or Quick Lab?
Calculate by QxMD ships an update every 6 weeks, and Quick Lab every 2 months. Most recently, Calculate by QxMD was updated on November 1, 2026 and Quick Lab on October 18, 2026.

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