>> "3. Price your service to encourage engagement."

This probably should be changed to "Make the price transparent." I read their pricing based on credits and I still don't get it.

Honestly, I am still baffled by the fact that so many startups build software for developers/small businesses without selling their software first!!!

Make a prototype, go to customers, sell it, and ask for feedback right then and there. Ask for what they want, pivot (or add features) before you have written a single line of code.