Thats the million dollar question. How to know if the app has breached that level of usefulness where user will want to come back? Hence the urge to blindly add more and more features.
If you are a movie buff, would you come back to the app?
If you are a movie buff, would you come back to the app?
to me, it would be new and interesting if you set up something that looked through my friends, saw what movies they liked, and produced an automatic recontamination list based off of that.