Compare software

Blocker vs Island: catalog facts
Blocker	Island
Best for: Advanced Android users who want to cut trackers and background services from apps	Best for: Android users who want to contain permission-hungry or constantly waking apps
Free Free and open source.	Free The homepage does not mention any cost.
Android	Android
Disables trackers, services and receivers inside apps Supports the Intent Firewall as well as the package manager All 3 strengths for Blocker Disables trackers, services and receivers inside apps Supports the Intent Firewall as well as the package manager Active development	Blocks access to contacts, photos and call logs even with permissions granted Freezes apps to stop their background behaviour All 4 strengths for Island Blocks access to contacts, photos and call logs even with permissions granted Freezes apps to stop their background behaviour Runs a second copy of an app with a different account No root required
Needs root access or Shizuku Disabling the wrong component can break an app	Device-bound data such as SMS and IMEI remains accessible Apps must be cloned into Island before they are isolated
Downloadable app	Downloadable app
Open source	Not open source
License: GPL-3.0	License not stated
No account needed	No account needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for Blocker github.com/lihenggui/blocker f-droid.org/packages/com.merxury.blocker Catalog checked October 1, 2026	Official website Full listing and sources Sources for Island island.oasisfeng.com play.google.com/store/apps/details Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.