MDCalc vs QxMD (2025): The Clinical Calculator Standard vs The Integrated Reader
At a Glance
Who is it for?
MDCalc:Global Clinicians
QxMD (Calculate):Global Clinicians
Why choose MDCalc?
- Shows the evidence/source for every calc
- Creator insights ('Why use this?')
- Cleaner, faster web interface
Why choose QxMD (Calculate)?
- 'Grouped' calculators (e.g. 'Useful in General Med')
- Links directly to papers in 'Read by QxMD'
- Stronger native app focus
Feature Comparison
| Capability | MDCalc | QxMD (Calculate) |
|---|---|---|
| Pricing | Free | Free (Premium options for Read) |
| Access | Web-first (Excellent mobile site) | App-first ecosystem |
| Primary Strength | Accuracy & Transparency | Discovery & Integration |
| Evidence Base | Detailed 'Evidence' tab per score | Links to PubMed/Read |
| Customisation | Favorites list | Specialty-based distinct apps |
In-Depth Analysis
Overview
MDCalc is widely respected as the "source of truth" for digital clinical calculations. Its defining feature is transparency: it doesn't just give you a number; it tells you the inclusion criteria, the pitfalls, and the original paper behind the score. It is built by physicians who prioritize clinical accuracy above all else.
QxMD offers 'Calculate' as a companion to its popular 'Read' app (a journal aggregator). While the calculator function is robust, it is designed as part of a toolset to keep doctors up-to-date with literature. Its interface is app-centric, guiding users towards grouping tools by specialty.
Key Differences
MDCalc is the tool you use when you are making a decision right now and need to be 100% sure of the criteria (e.g., "Does this PERC rule apply to a patient over 50?"). QxMD is excellent if you want a utility app that sits alongside your literature reading habits, consolidating your digital medical life into one login.
Looking for a faster way?
While MDCalc and QxMD (Calculate) are powerful tools, iatroX offers a free, AI-driven alternative focused specifically on rapid UK guideline retrieval and exam prep.
Use-Cases
Checking a Wells Score
When to choose MDCalc
- Clean interface, allows you to read the 'Next Steps' based on the score directly.
When to choose QxMD (Calculate)
- Good functional calculator, useful if you already live in the QxMD ecosystem.
Researching a Score
When to choose MDCalc
- Unbeatable. Explains inclusion/exclusion criteria for the study that created the score.
When to choose QxMD (Calculate)
- Links you to the original paper, but less summary analysis on the page itself.