You can use psndl (google it the website will pop up no problem) on your PS3 web browser to download games and the rif/rap files for them. It requires use of multiman to move the files around and reactpsn to actually activate any of the items you download and install. So no there is not any app for it but it can all be done via the system it's self with a set of apps. Perhaps someone might be interested in trying to make something like freeshop that can do it all in one but right now that's the only on console solution