Your Warfarin Diary
I had my chest opened 3 times in 4 months. Now I'm on warfarin for life. At the clinic, they handed me a stack of papers I couldn't make sense of. So I built something better.
How It Works
Simple. Just 3 steps to stay safe.
Log Your INR
Takes 10 seconds. Enter your reading and we'll track it.
See Your Trends
Visual charts show if you're staying in therapeutic range.
Share With Doctor
Generate a PDF report for your appointment with one click.
Everything You Need
Simple tools for managing warfarin safely
INR Tracking with Trends
Log your INR and see trends over time. Know if you're staying in range.
Real Education, Not Leaflets
The clinic gave me a stack of A4s. Useless. Here you get digestible articles on specific topics — plus my real decisions, my mistakes, and what I'm learning along the way.
Vitamin K Food Database
200+ foods with exact vitamin K content. Know what you're eating.
Doctor Reports (PDF)
Generate professional reports for your appointments in seconds.
Simple, Honest Pricing
Built by a patient, for patients.
iOS App
Coming soon
Android App
Coming soon
Ready to Test at Home?
The CoaguChek INRange device brings lab-quality INR testing to your living room. No more waiting rooms, no more scheduling hassles.
- Professional-grade accuracy
- Results in seconds
- Test anytime, anywhere
- Medicare often covers
CoaguChek device sold separately. CoagCompanion is a free app to track your results.