I'm a fairly confident programmer but I haven't spent much time in mobile development. I'm sure I can finished a core feature or two and have it ready for laun

I'm a fairly confident programmer but I haven't spent much time in mobile development. I'm sure I can finished a core feature or two and have it ready for launch. My worry was that if I launch a product with half the core features, would that make it harder in the future to launch a fully-functioning application? (if people didn't like it the first time) Thanks for you response!