Honestly, PATS is a good idea with terrible execution. I don't really understand why I need the GPS to locate the inside of my own house. And it's so empty might as well not have it at all. I'd really rather choose to mindlessly explore the area if that means I can get some sort of interaction. Releasing this content-based app at a time when content is very scarce is a bad idea imo.
My advice is make it so that the phone is where you can go advance the story whether they're side quests or main quests, but still keep some interactions outside of using the phone.