01
It is available from the first launch.
There is no extension to discover, permission screen to approve, or store listing to depend on.
Lean Guard
Native ad blocking inside the browser.
Lean Guard blocks ads and trackers in the browser’s network path. It works without installing an extension.
What native changes
02
Each Context can choose a level.
A work session and a temporary session can use different blocking policies in the same window.
03
You can see and correct breakage.
Lean shows a local domain summary. If a website breaks, you can allow that site with one click.
Visible limits
Blocking is a compatibility tradeoff.
No filter list can guarantee that every website behaves correctly. Lean keeps the site control close and distributes corrected lists independently from browser releases.
The blocked-domain history stays on your device and is removed after seven days.