How to start a good mobile app development in a fast and clear way:

1. Write down what message you want to bring to your audience (with premise of the existence of logo and products)

2. Do some research on user interface and user experience of latest trends of mobile app

3. Write down the functional specification of your mobile app

4. Draw wireframe of your mobile app design (must match with the functional specification)

5. Design the graphic user interface (UI) with the wireframe

6. Do the programming according to UI and functional specification

7. Check and debug

8. Test run

9. Launch the app