"Pokemon Go Release" has "full access" and yet "Ingress" (a game very similar to Pokemon Go from the same company) only has "basic account info". I removed the access and when I started the app, it crashed right away. (I'm on iOS, by the way.) Subsequent launch I'm stuck on the "LOADING..." screen, and then it says "Failed to get player information from the server." I hope the servers are just down and I didn't lock myself out. (Or maybe I should be glad until this fix this breach.) Edit: Deleting the app and reinstalling allowed me to log in again.
It appears to be the iOS version only that's doing this, according to this article:
http://9to5google.com/2016/07/11/psa-pokemon-go-full-access-...