Mobile App Design Flow

1. Define the Problem and App Solution
2. Define Personas
3. Find the Use Case and User Story
4. Find the feature list
5. Prioritize the feature list (user story? scrum? kaban?)
6. MVP
7. Define main work flows  and others.
8. Prototype High Level Wireframe
9. Confirm the wireframe and prototype with users
10. Coding and Testing

references:
https://www.udacity.com/course/ux-design-for-mobile-developers--ud849