This app helps individuals taking warfarin or other vitamin K antagonists track their INR readings, doses, and target ranges. It provides visual representations of control, schedules weekly medication, and offers reminders for doses and upcoming tests. Advanced features include Time in Therapeutic Range calculations and printable reports for clinics.
1.1
August 25, 2026
Some laboratories report INR to two or three decimal places rather than one. Settings › Display now lets you match yours, so your logbook reads exactly like the result on your paper. Readings you have already recorded are untouched, and CSV export now carries the full value. Thank you to the reader who asked for this.
More您好，感谢您的反馈。 您提的这一点很对。INR 通常写作一位小数，之前 App 就是这样固定的， 所以化验单上的 2.35 只能记成 2.4。 1.1 版已加入这个设置：设置 › 显示 › INR 小数位数，可选 1、2 或 3 位。 选好之后，App 里的数字就和化验单完全一致，CSV 导出也会保留完整数值。 已经记录过的数据不受影响。 新版本审核通过后就会上线。再次感谢您专门写下这条评价 —— 正是因为您 提了，这个功能才有了。 Rangewell 团队
Rangewell is a logbook designed for individuals taking warfarin or other vitamin K antagonists. It helps users track their INR readings, medication doses, and target ranges, providing visual insights into their treatment control.
No, Rangewell is designed to be a neutral logbook. It records what you and your anticoagulation clinic decide and never suggests a dose or interprets a result. Always follow your anticoagulation clinic's guidance.
Warfarin is often prescribed as a weekly regimen. Rangewell can schedule each day's dose separately, allowing for fractions of a tablet or specific milligram amounts, and displays the weekly total as discussed with your clinic.
Rangewell Pro offers advanced features like Time in Therapeutic Range (TTR) calculation, printable clinic reports, an interference journal for factors like diet and illness, bleeding and bruising records, and encrypted iCloud sync.
Yes, all logged data, including readings, doses, and associated events, can be exported into a single CSV file. This file is compatible with most spreadsheets and can be easily shared via email or AirDrop.
Your data remains on your device unless you enable iCloud sync, in which case it is only sent to your personal iCloud account. The app does not use advertising or tracking, and does not require accounts.
The basic Rangewell app is free to use. Rangewell Pro features are available through a monthly or annual subscription, or a one-time lifetime purchase. The annual plan includes a 7-day free trial.
Rangewell has an age rating of 12+. It is designed for individuals managing anticoagulant therapy, which is typically prescribed to adults.
