# Diaguard (open-source fitness and health app)

> Diaguard is a free, open-source fitness and health app for Android. Diabetes diary and food database. It has 145 GitHub stars and is released under the GPL-3.0-or-later license, and you can install it from F-Droid and Google Play.

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.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Faltenreich/Diaguard |
| Platforms | Android |
| Built with | Java |
| GitHub stars | 145 |
| License | GPL-3.0-or-later (open source) |
| F-Droid | https://f-droid.org/packages/com.faltenreich.diaguard/ (package com.faltenreich.diaguard) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.faltenreich.diaguard |
| App Store | not linked |
| Website | https://diaguard.wordpress.com/ |
| Official | no |
| Category | Fitness & health |
| Latest release | version/3.15.1 (Sep 19, 2025) |
| Last commit | May 9, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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