Diab is a free Libre open-source journaling and logging application for Diabetes patients.

It allows users to log their blood sugar, insulin usage, their insulin injections, and then offers an overall insights on the records.

Diab records can be exported easily to a spreadsheet file that can be used with Google Sheets, Microsoft Excel, and LibreOffice Calc. Furthermore, this portable format can be shared with doctors.

The app offers a straightforward easy-to-use interface without hidden features or complex configuration.


  1. Record and log blood sugar.
  2. Record insulin doses.
  3. Export your records to CSV.
  4. Insulin suggestion plugin (We highly recommend consulting your doctor on this one).
  5. [optional] Google Fit integration


Diab is available to download for free from the F-Droid application store.


The project is a Libre open source project that is released under the GPL-3.0 license.