INR Diary Plus tracks your oral anticoagulation therapy

  • Configure a repeating dose scheme
  • Get reminded of your daily dose at a specified time
  • Visualise your INR level over time



Be reminded to take your anticoagulation medicine!

All anticoagulents

Whether you're using Warfarin, Marcoumar, Sintrom, ...

INR graph

Review the fluctuation of your INR level over time.

Export your data

Make a backup for yourself or to keep your therapist posted.

Story behind the app

In September 2014, my 30-year-old wife received a mechanical cardiac valve because hers was wearing out. She needed to start taking blood thinner medication daily, at a fixed time. The dose often varied from day to day, which made it difficult to track. Sometimes she doubted whether she had taken the anticoagulent. It even occurred that she'd forget to take it, which can of course be very dangerous.

In the meantime, I was looking for an interesting case for my first Android app. With my wife as a guinea pig, a first version was created. INR Diary was born!

Today, INR Diary is the best rated INR management app for Android. It is available in 6 languages: English, German, Spanish, French, Italian and Dutch. INR Diary has been downloaded over 1000 times in over 30 countries throughout the world.

Peter Mesotten


Sandra Ramaekers

QA / Support

What do people think?

The first INR app that has it all. INR Diary is easy to use with no bloated functionalities.

Mathias Richter Germany

I've switched to this app after having used a competitor INR app for years. The ability to add doses in bulk is a great help.

Ola Thoresen Norway

INR Diary really helps me out while managing my medication.

Thodo Sinaga Indonesia

This app really contains everything you would expect. Nice that you can configure an INR range. Well done!

Erik Venema The Netherlands

Finally an app for Marcoumar patients, which leaves almost nothing to be desired.

Juergen Ahlers Germany

INR Diary is very well structured and easy to use.

Ghislain Van Hullebusch Belgium

The best app you can get for following up your INR. Thank you for the many updates.

Antonio Martino Italy

INR Diary is very user friendly. Great to see that the app is translated into German. Fair price.

Meinolf Hepp Germany

Very good app, easy and understandable. Nice notification sound.

Petra Welcker Germany

Exactly what I need as a blood thinner patient. Real value for money. Thank you for this app!

Peter K Germany

This app is value for your money. Quick and easy to set up. A real help for us, Marcumar patients.

Stephan Winkler Germany

I'm a Marcoumar patient who's been using this app for quite a while now. INR Diary is the best out of all apps I've tried and definitely worth the money.

Wolfgang Starrost Germany

Contact us

We’d love to hear from you. Please let us know if you have any questions or feedback.