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If you take Warfarin or Coumadin, INR log can help you to keep track of your treatment.

It is easy to use and allows you to record all your INR results and your treatment prescribed by your doctor. Each day it will show you your warfarin dose and sends you an alert when your treatment is due. It will also remind you when to take your next INR test to help you achieve the best possible control.

It is very flexible and allows you to enter your own treatment range and select up to 3 different size tablets. You can record your dose as a daily dose or weekly dose and change the dose very easily based on your doctor's advice.

Your INR results are displayed graphically and in a table and you can add earlier INR results so you can see a complete record over time.

You can keep track of how well your treatment is going by following your time within the therapeutic range. This is a good measure of anticoagulant control and ideally should be above 60%. You can also keep track of your drug adherence if you record your treatment every day.

INR log is ideal for anybody taking warfarin, whether you are self-testing using a near patient testing device or if you are managed through an anticoagulant clinic or hospital laboratory.

INR log has been developed by a Consultant Haematologist with more than 25yrs of experience managing people on warfarin. It has been designed to be easy to use providing you with the important information you need to achieve safe control.

Please note:

INR log does not provide any medical advice about warfarin treatment. INR log is designed to be used only in conjunction with support from your healthcare professionals. It is designed as a convenient means of recording your treatment. If you have questions regarding your treatment you should consult your doctor supervising your treatment.

The software is to be used as an aid only and the user takes full responsibility for any data entered into the app. In no event shall the author or developer be liable to any party for damages resulting from the use of this application.

What’s New

Version 1.21

This app has been updated by Apple to use the latest Apple signing certificate.

Corrected formatting for the iPhone 4 and iPad.
Minor bug fixes

Ratings and Reviews

2.8 out of 5
13 Ratings

13 Ratings

valve guy ,

Good app but could use a little improvement

This is a good app but it could use a feature that users can edit the daily dose if needed sometimes our doses must change to compensate and also if we could add older testing results and back date them that would be awesome sometimes users can forget to record them till the next day I’ve done it a time or two

Hillbilly swifts ,

For the next iOS update PLEASE ♥️



This is SO helpful!! I’ve been on blood thinners for 16 +yrs and this is one of the main pieces of the puzzle that doctors REALLY NEED FROM PATIENTS!!!

If Possible 🙏🏼
Please add a place where we can add comments and/or a rating, i,e.

“I have felt since last test day”
Rating Scale1-5
1=poor 5=excellent
Something like a rating scale for the common reasons INR becomes out of range, i,e.
Eating vitamin K
Activity Level

Then another for

GI issues

Or just a place where we can add a comment for each test result.

Hopefully y’all can add this on the next update!!!
My doc is going to freak when I hand her a copy of these results!🎉♥️♥️🎉

Many Thanks,

Sent from my iPhone

PA Schmitts ,

No way to export results

I've been using this app for six months and have just discovered there is no way to actually export your results. When you use the "Print or email results" resource, it generates a PDF With only 10 results per page. I need a CSV file that can be imported by my Doctor.
Then you can't print or save the PDF, you can only email it. After you enter the information on where to send the email, there's NO button to actually send the email. Don't bother trying to email support, there's no send button there either!
DO NOT USE THIS APP unless you plan to manually retype all your readings.


HealthObs Ltd
6.3 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Medical/Treatment Information


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