This is one of the best advantages android has over iOS - you don't have all those goddamn app nag screens all over the internet.
And it's really goddamn annoying.
I can't stand that popup either though and have a severe dislike for tapatalk. From my experience with administering a forum, they charge quite a bit for their software and then charge quite a bit more on top for small bug fixes they won't fix otherwise :(
One example is tapatalk users not being aware you're part of the forum staff when you're attempting to calm down some users and they go off on you. Though that works two ways I suppose, since they can't see you're part of the staff and go off on you as well and gives you an excuse to give them a couple day vacation :)