# Caffeine Health (open-source fitness and health app)

> Caffeine Health is a free, open-source fitness and health app for Android. Track your caffeine. Protect your sleep. Real-time pharmacokinetic curves. It has 142 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.

Caffeine Health is a beautifully designed Android app that helps you understand how your caffeine intake affects your body throughout the day — and whether that late-afternoon espresso might cost you sleep tonight. Log drinks from a curated catalog, watch your active caffeine level in real time on a 24-hour curve, and get a personalized sleep forecast based on your unique metabolism.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/ohuc/CaffeineHealth |
| Platforms | Android |
| Built with | Jetpack Compose |
| GitHub stars | 142 |
| License | GPL-3.0-only (open source) |
| F-Droid | https://f-droid.org/packages/com.uc.caffeine/ (package com.uc.caffeine) |
| F-Droid anti-features | none flagged |
| Google Play | not linked |
| App Store | not linked |
| Website | https://github.com/ohuc/CaffeineHealth |
| Official | no |
| Category | Fitness & health |
| Latest release | v2.3.3 (Sep 29, 2026) |
| Last commit | Oct 6, 2026 |

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

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