Adblock Plus

N.B If you get a http error 400 when updating the F-Droid client, it is probably caused by this app and you will need to disable ad-blocking to allow the F-Droid repos to update correctly.

Adblock Plus runs in the background and filters ads, using the same filters as the Adblock Plus browser extension. Without needing root, it uses a proxy feature that comes with Android 3.1+ to block ads over WiFi ; but if your phone comes with extra proxy settings (e.g. Samsung or Custom ROMs), it can be configured for Android 3.0 and below. Instructions are provided in the app or on their website.

Requires root: No. Without root it uses a local proxy to filter ads for all apps over WiFi only ; if you allow root the app can edit the hosts file too and block ads on cellular data access points.