
Mechanical valve, warfarin for life: I built an iPhone app to track my INR
I had an aortic valve replacement and have a mechanical valve. It ticks like a clock 🙂 I'm on warfarin for life.
I went from the yellow book to an Excel sheet, and then built an app for myself. Sharing it in case it helps someone here.
It logs INR results, doses, vitamin K, activity and health events, with reminders, an INR chart with your target range, and email/export to your clinic.
It doesn't calculate or suggest doses. It's a logbook, not a medical device.
No account, no ads, no tracking. Your data stays on your phone.
Most of it is free. There's an optional one-time £4.99 (no subscription) for extra charts and a PDF clinic report.
iPhone only for now, and not available in the EU. I'd love feedback from long-time warfarin folks on what would be useful.