It's kinda a step by step process, started with Comics Camera, then PS Express (which is made by Adobe), PicsArt, and ended with PaintFx Pro (all of which I paid for pro versions and extras, totally worth the money for those 4). I used to own a photography business back when you did photo editing with camera setting and different chemical developing processes, over or under development of the negative, or laying more than one negative on top of one another. I LOVE editing. Much easier now with an iPhone, iPad, Bluetooth smart pen, Intuos graphics tablet and all the apps that go with them lol.