Im really tired of the trick pop up ads that appear each time this (and other) apps launch. If Im interested in your products cross-marketing Ill be proactive to seek it out. If it is a misleading way to sell advertising (inappropriate for a pro version) and something that interrupts use of the app - well, I will certainly think less of the company that published it.
Once running the app is fine. Unfortunately one must dismiss Game Center (not their fault) and avoid the pop up (which launches the App Store, forcing one to relaunch the app and dismiss Game Center again).
IDontWantAStupidNicknameDamnIt about GEO Play Pro - rediscover the beauty of geography!