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Diaguard

Diaguard is a free, open-source fitness and health app for Android. Diabetes diary and food database. It has 146 GitHub stars and is released under the GPL-3.0-or-later license, and you can install it from F-Droid and Google Play.

github.com/Faltenreich/Diaguard (opens in a new tab)

Data as of from the GitHub API and the F-Droid index; description from the project's repository or F-Droid listing. Report an error

Get it on F-Droid (opens in a new tab)Google Play (opens in a new tab)View on GitHub (opens in a new tab)

About Diaguard

Diaguard is a free of cost, ad-free and open source app for people with diabetes mellitus. It replaces the handwritten diary and helps the user to quickly and easily record, evaluate and export his blood sugar and other important data as PDF or CSV. Thanks to the clearly arranged interface, the user always has an overview of his diabetes. The app also provides information on several thousand foods including carbohydrates and other nutrients.

Privacy and F-Droid

F-Droid builds Diaguard from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.

No anti-features flagged on the latest F-Droid build.

Screenshots

  • Diaguard screenshot 1
  • Diaguard screenshot 2
  • Diaguard screenshot 3

Screenshots from the app's F-Droid listing.

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FAQ

Diaguard FAQ

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Is Diaguard free and open source?

Yes. Diaguard's source code is public on GitHub under the GPL-3.0-or-later license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.

How do I install Diaguard?

You can install Diaguard from F-Droid (package com.faltenreich.diaguard) and from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: version/3.15.1).

Is Diaguard still maintained?

The repository's most recent commit was on May 9, 2026. Its F-Droid listing was last updated on Sep 23, 2025. appsgit only lists apps whose repository had a commit in the last six months.