AdAway
Free Software For Android
On Transifex, please do not subdivide languages into regions, e.g. don't specify Italian (Italy), instead please only specify Italian. Exception: Put simplified chinese in "zh" (on transifex: Chinese) and traditional chinese in "zh-rTW" (on transifex: Chinese (Taiwan). See http://stackoverflow.com/q/7459367 and http://stackoverflow.com/q/4189875