First impression It needs a widget to turn on and off instead of constantly pinging location services, widget could also display your score. An added perk of this is it would make it easy to avoid picking up when you are a passenger. I would also add that a notice about waiting for a trip is not constantly needed it simply adds clutter to the screen. Edit: the standard message so it is is not an alert. Also on the Nexus 6p it constantly says location services are off this leads to two alerts all the time.
Obsolete login method Email and pin code??!! Come on! Sign in providers like Google, FB and twitter are out there. Secondly, 26 meg for this kinda app!! Go shrink it guys
Progressive Mobile App Easy to operate, stress free
Upgrade map version, improve navigation
Reduce memory usage in some cases
Requires Android 4.4+
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