INR tracking
Log readings in seconds. Clean graphs, color‑coded ranges, and customizable targets make trends obvious at a glance.
- Interactive trend charts
- Custom therapeutic range
- In‑range / low / high coding
Free · iPhone, iPad & Apple Watch
Stay in range.
Stay in range.
Effortlessly.
INRange is the beautiful, modern companion for everyone on warfarin. Track INR, manage doses, and get smart reminders — on your iPhone or iPad and right from your wrist.
100%
Free, forever
0
Ads or trackers
30d
Auto backups
On‑device & private
No account required
Daily auto‑backups
Built for warfarin patients
Everything you need
A complete toolkit for anticoagulation care
Purpose‑built for the warfarin routine — readings, doses, reminders, reports, and a Watch app that actually helps.
Smart dosing
Handle simple daily regimens or complex day‑by‑day patterns with ease. Tap to mark as taken — including from notifications.
- Simple & advanced patterns
- Visual dose calendar
- One‑tap "mark as taken"
Interactive reminders
Actionable notifications you can respond to from your wrist or lock screen. Mark as taken, edit the dose, or snooze 5 / 15 / 30 min or 1 hr — without opening the app.
- Inline action buttons
- Edit the dose from the alert
- Context‑aware snooze
- Works on iPhone, iPad & Watch
Test scheduling
Tap any date on the calendar to reschedule an INR test. Change just one — or update the whole cadence.
- Tap‑to‑reschedule
- Recurring test patterns
- Upcoming test reminders
Automatic backups
Your medical data, protected by default. Daily CSV snapshots with 30‑day retention and one‑tap recovery.
- Zero configuration
- 30 days of history
- Instant restore
PDF & CSV reports
Medical‑grade PDFs to share with your doctor, plus CSV exports you can open anywhere.
- Print‑ready PDFs
- CSV export & import
- Share sheet integration
Home Screen widget
Keep today’s dose and your latest INR one tap away. Mark your dose as taken right from the Home Screen — no need to open the app.
- One‑tap “mark as taken”
- Today’s dose & last INR at a glance
- Next test date front and center
Vitamin K guidance
A built-in vitamin K food database, searchable as you log a reading or dose. Keep an eye on the dietary swings that move your INR.
- Searchable vitamin K food database
- Add foods straight to your notes
- Spot diet-driven INR changes
Apple Watch, front and center
A full Watch app. Not an afterthought.
Most INR trackers don't support Apple Watch. The ones that do often charge extra. INRange gives you the whole experience, free — with offline logging, interactive reminders, and seamless sync to your iPhone.
- Enter INR readings right from your wrist
- Log & mark doses as taken
- Change today’s dose right on your wrist
- Mark today's dose as taken in a single tap
- Works offline, syncs back when connected
- Haptic confirmation every time something is logged
Why INRange
Premium features. Zero cost.
Other INR apps either skip the Watch entirely or charge $3.99–$4.99 for basics. INRange delivers the whole experience — free, ad‑free, tracker‑free.
INRange
Free
- ✓ Full Apple Watch app
- ✓ Home Screen widget
- ✓ Interactive notifications
- ✓ Automatic daily backups
- ✓ PDF medical reports
- ✓ No ads, no tracking
- ✓ No account required
Others
Typical INR app
$3.99 – $4.99
- ✕ Often no Watch app
- ✕ No Home Screen widget
- ✕ Basic reminders only
- ✕ Manual backups
- ✕ Limited sharing
- ✕ Ads & in‑app purchases
- ✕ Often requires account
What's next
Roadmap
Always evolving with feedback from real warfarin patients.
Recently shipped
- PDF / CSV data export
- Universal iPad app
- Local backup system · 30‑day retention
- Medical‑grade PDF reports
Coming soon
- Time in Therapeutic Range (TTR)
- iCloud backup & sync
- HealthKit integration
- Enhanced backup restoration
Later
- Medication interaction checker
- Advanced analytics dashboard
Ready to stay in range?
INRange is free, private by design, and built with love for the warfarin community.
INRange is designed to help track INR and medication information. Always consult with your healthcare provider for medical decisions. This app does not provide medical advice.