Compare software

Shelter vs Island: catalog facts
Shelter	Island

Best for: Separate selected Android apps into a work profile	Best for: Android users who want to contain permission-hungry or constantly waking apps
Free The open-source software is available without a license fee. Hosting, hardware and external services are separate.	Free The homepage does not mention any cost.
Android	Android
Uses Android's built-in profile isolation for cloned or separate apps.	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
Requires a device that supports Android work profiles.	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
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Shelter github.com/PeterCxy/Shelter github.com/PeterCxy/Shelter/blob/master/LICENSE Catalog checked September 22, 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.