George C. Wolf, a Broadway director says
To make a show go from good to very good is very easy. It's a series of bold, smart things you have to do. But to make a show go from very good to brilliant...it's an endless series of details. An endless series of unbelievable details that lift it." You can see him say it at 3:17 in the video.
In app development, get the first, less version out there. Then, guided by user feedback and your own vision start iterating. Add features, take away features and polish. Iterate the features, the interface and the design. Ultimately this is the difference between your app and there app, who has the right features and who has the polish.
Boy was this timely. Just the nudge I needed to just go forward and refine some coding projects. Perfectionism keeps me from sharing and creating. Time to move forward.
Look up forward, good luck