New here? I'd recommend checking out these resources to get started:

Supercharge your next app project
The 33-Point Post Launch Checklist
Code Guide and Screencasts: Build A Game App In Just One Hour
How To Supercharge Learning How To Code
9 Quick Tips To Build Your First Killer App
Grab Our Mighty Swift Cheatsheet

The Pro Course - the no-BS app coding course for aspiring app makers