Also want to chime in that just building the core features (or shall I say a very simplistic version of the core features assuming two weeks time) isn't going t

Also want to chime in that just building the core features (or shall I say a very simplistic version of the core features assuming two weeks time) isn't going to make an app successful. Rather, it's handling the endless amount of edge cases and the different ways your customers will end up using your product.