MedCalX is a tool that enables medical professionals to easily use complicated medical formulas, scores and classifications. 15 years of experience developing this tool for mobile platforms makes MedCalX the leading medical calculator, with an unparalleled user interface and powerful features.

MedCalX is free to download and use, but you have access only to a subset of formulas.
In-app purchase lets you unlock the whole range of formulas that MedCalX has to offer; more than 300 in total! If you have previously purchased MedCalc 3 you can even unlock for free.

Main features:
• A very large selection (more than 300) of relevant formulas, scores, scales and classifications.
• Workflows: create your own series of formulas, text, links and images
• Many different ways to share results (and data): copy to clipboard, email report, print via AirPrint, save to patient database...
• Exclusive patient management feature for saving and accessing results, as well as images and notes. Results can be exported to the desktop as CSV files and shared between your and your colleaugues iOS devices.
• Detailed information and bibliographic references for each formula.
• Support for US and SI units, with easy switching from the keypad.
• Search for entries by name, keywords and categories.
• Takes advantage of iOS 9 – you can now use Spotlight to search for formulas
• Customizable list of favorite equations, synchronized via iCloud.
• Ability to add notes to individual formulas.
• Full support for external (hardware) keyboards

Formulas, scores and classifications include, amongst others:
• Anesthesiology (ASA, Bromage, Charlson, Cormack, Dermatome, Goldman)
• Electrolytes (Corrected Ca, Corrected Na, FENa, Osmolal gap)
• Evidence-Based Medicine (NNT, Odds, Sample size, Two-way table)
• ICU (ABCD2+3, APACHE, CAM-ICU, GCS, Parkland, SAPS, many PE-criteria and trauma scores)
• Neurology (AMTS, Aphasia, Canadian rules, NIHSS, WFNS)
• Obstetrics (APGAR, Bishop, Malinas, Pregnancy Wheel)
• Pediatrics (Age, Target Height, Centor and McIsaac, PRAM, WETFAG)
• Respiratory (BODE, Epworth, GOLD, SMART-COP, Spirometry, Thoracoscore)
• Renal (Cockcroft, MDRD and more Creatinine/GFR calculators, KDIGO and RIFLE)
• ABG analyzer worth $5 in other apps
• Complete infusion management tool, great for ICU nurses
• Complicated scores (CAM-ICU, CDAI, APACHE, POSSUM, SAPS, Euroscore)

If you like MedCalX, we’d appreciate it if you took the time to give us a nice review.

What's New

Version 3.3.2

- iPhone X compatibility
- Improvements for iPad users

Ratings and Reviews

3.2 out of 5

9 Ratings

9 Ratings

Great app but


It's a great app but it's not restoring my previous purchase unlocking the formulas.
As soon it is fixed I will rate 5 stars

Developer Response

Sounds like you've upgraded from MedCalc v3 to MedCalX, in which case restoring won't work and you need to perform an upgrade step. Please see here for steps or contact us directly:

Purchases transferred over completely


I am not sure why there are so many one star reviews but my pro version transferred over completely.

On the new MedCalX you have to press About>Settings and follow the steps to transfer. Was not that difficult at all.

People complaining about the name change, they stated pretty clearly--legality issues. I'm assuming over the name MedCalc itself as there is another product out there with the same name--different application/purpose.

Upgrade and transfer in the app settings. Still awesome!


I've used this app since medical school. I was finally tired of seeing the upgrade screen before I used a calculator so I upgraded. Very easy to send my favorites over to the new app and since I purchased pro and had all access previously I continue to have all access now. I literally use this app everyday and it has all the equations I need in one place.


Ossus GmbH
40.7 MB
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Portuguese, Simplified Chinese, Spanish
Age Rating
You must be at least 17 years old to download this app.
Frequent/Intense Medical/Treatment Information
Frequent/Intense Alcohol, Tobacco, or Drug Use or References
© 2018 Pascal Pfiffner & Mathias Tschopp
In-App Purchases
  1. MedCalX Unlock $4.99
  2. MedCalc 3 Upgrade Free
  3. Doximity Registration Free


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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