Most advanced email app If you like to tweak and configure settings  K-9 is the best email app  hands down. E.g. ability to override phone sync settings is invaluable if you want to get your email notifications when you're out but not Facebook  Soundcloud  etc. Integration with APG for PGP email encryption is also really cool for serious nerd cred. 10/10 makes me want to move back into mom's basement.
September 10 2016