App Blocker: Curbox Detox
We highly advise reviewing and updating your settings. Additionally, you will need to reconfigure both Tamper Protection and the Settings Change Delay.
We apologize for any inconvenience this may cause!
Please read the docs for app, wesbite, and shortform blockers at curb
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
• Settings Change Delay: make weaker rule changes wait before they take effect, giving you time to reconsider
Hide only the distracting parts
Granular UI Hiding lets you remove the trap inside an app without losing the app. Curbox lays a clean overlay over the exact area you pick, so everything else keeps working. For example, hide the YouTube home feed but keep search, blank out the Instagram explore tab, or the entire home feed while allowing posts from friends. You stay in control of what you see.
Stay focused
• Focus Mode: pause apps and websites for a set time so you can study or work in peace
• Scheduled DND: turn on Do Not Disturb automatically at the hours you set
• App Specific Grayscale: drain the color out of Instagram while your Camera stays full color, so dull apps lose their pull
• Scheduled Usage Limits: set when a group is active and how much use is available during that time
• Mindful Messages: gentle nudges that run as overlay when you use an app
• Attention Span Tracking: see how long you stay with short form videos before moving on
See your time
• Usage Analytics: clear breakdowns of how long you spend in each app and website
• Focus Statistics: track your focus sessions and your progress over time
• Live Scroll Counter: a real time count of how many short videos you have scrolled
• Session Timer: a live timer of how long the current app has been open
• Home Screen Widgets: keep your stats and quick controls on your home screen
Choose how hard it is to give in
When you use all the time available in a schedule, you decide what it takes to get back in.
• Strict Blockade: no access at all
• Timed Unlocks: each unlock lasts a short set time, like 5 minutes
• Dynamic Unlocks: pick the unlock length yourself each time
• QR or Barcode Unlock: scan a real barcode, like one on a book, so you have to get up and move
• Sentence Retyping: type out a full sentence before the app will open
• Unlock Limits: cap how many unlocks you get every few hours
• NFC Unlock: use a physical NFC tag to make unlocking a deliberate action
• Adaptive Math: solve a changing math challenge before you can unlock
Built for developers
The Curbox API lets approved apps start Focus Mode, change Curbox settings, and read usage statistics. You stay in control of which apps receive access.
Curbox is the app blocker for anyone who wants to block distracting apps and websites, cut screen time, and take back their focus. Free, open source, no ads.
- Author: Nethical
- License: GNU General Public License v3.0 or later
- Website
- Issue Tracker
- Source Code
- Build Metadata
- Reproducibility Status
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Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
Download F-Droid-
arm64-v8aarmeabi-v7ax86x86_64This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 7.8 MiB PGP Signature | Build Log
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arm64-v8aarmeabi-v7ax86x86_64This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 7.7 MiB PGP Signature | Build Log
-
arm64-v8aarmeabi-v7ax86x86_64This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 7.7 MiB PGP Signature | Build Log
- make both website usage tracker and app usage tracker turnoffable
- remove pm suspend from focus mode (it was buggy asf)
- add support for firefox focus browser @arlohb
- Show remaining opens in warning overlay @binayshaw7777
- now warning screen unlock duration is applied to entire app/website group instead of one
- add timer notification for keyword blocker
- Add minimum character setting for intent unlock @ompug
- Label the only warning screen butt
- Settings change delay, so weakening a block takes time
- Stronger anti uninstall protection
- Snapchat spotlight and story blocking
- Grayscale now use WRITE_SECURE_SETTINGS
- App language picker, plus Arabic, Chinese, Japanese, Portuguese, Russian
- Support for Vivaldi, IronFox and Iceraven
- Many fixes to usage stats, keyword blocker and UI hider scripts