Not user friendly
It is very difficult to learn how the gmail app works. Lots of icons that are difficult to understand. It sorts your mail to all kinds of different, hidden, unknown places. Im still finding emails that I never knew I received. The app tries to think for you, and thereby takes away your right and ability to set things up in a way that makes sense or you understand. It really is not user friendly.
Bom65 about
Gmail - Email by Google