Try it on another app (Google maps) that'll tell you if it's an issue with the Pokemon app or your phone
Works over wifi
For those who a lot more in to this, as I understand it the attack, defence and stamina stats of a wild pokemon are random. If you get a good one then that is the one you want to keep however to these stat re-roll or stay the same when you evolve? i.e. if I evolve my 95% perfect Drowzee will I have a 95% perfect Hypno or could it turn in to say a 70% Hypno?
I posted the same question here yesteraday and no clear answer. According to Reddit, they stay the same, but one other poster on here and me have tried and the evolved pokemon was a lot weaker.
Thanks for the replies guys, having been through all my pokemon last night I don't actually have anything over 88% but good to know if I find a 90% I can evolve without worry.
What would a good move set be exactly?