Also, the Curb app works really well. I haven't yet used to request a cab, but when you get in one you just enter the a six digit code from the screen into the

Also, the Curb app works really well. I haven't yet used to request a cab, but when you get in one you just enter the a six digit code from the screen into the app and it automatically takes care of the fare and adds a default tip (which you can adjust).