# App Blocker (open-source productivity app)

> App Blocker is a free, open-source productivity app for Android. App blocker and screen time tracker. Block apps, websites, reels and shorts. It has 1,382 GitHub stars and is released under the GPL-3.0-or-later license, and you can install it from F-Droid.

Curbox (formerly Digipauwse) is a free and open source app blocker and screen time tracker built for digital wellbeing and a real digital detox. As an app blocker it lets you block apps, websites, reels and shorts, then watch your screen time drop and your focus come back. Block apps and websites • App and Website Blocker: block any distracting app or website completely • URL Path Blocking: block just one part of a site, like m.youtube.com/shorts, while the rest of YouTube still works • Short Form Content Blocker: shut off Instagram Reels and YouTube Shorts so the feed stops pulling you back • Tamper Protection: make it difficult to uninstall Curbox or turn off its blocking service •…

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/curbox-app/curbox-android |
| Platforms | Android |
| Built with | Kotlin |
| GitHub stars | 1,382 |
| License | GPL-3.0-or-later (open source) |
| F-Droid | https://f-droid.org/packages/neth.iecal.curbox/ (package neth.iecal.curbox) |
| F-Droid anti-features | none flagged |
| Google Play | not linked |
| App Store | not linked |
| Website | https://curbox.app |
| Official | no |
| Category | Habit trackers & productivity |
| Latest release | 4 (Aug 7, 2026) |
| Last commit | Oct 1, 2026 |

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

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