From the article: Here is a guide to get you started, but note it may not work for everyone. This is drawn from my experience working for more than three years with entrepreneurs, helping them build and market their mobile apps. Take from it what suits your strategy best, or follow it to the hilt. The important part is to get started.
The article also ends with the punchline: Once you’re ready to start, you must also know that building a mobile app is the easiest part. Getting customers is where the challenge lies.