P.R.O Corporation is an Android developer, who started in 2010, and thus is one of the Android pioneers. The current app portfolio contains 38 apps, most of which are games. Two of the most important apps from P.R.O Corporation are Princess*Solitaire - Cute!
and Solitaire Victory - 100+ Games
. Both of them are highly ranked on Google Play and have been installed more than 500 thousand times.