Login Screen
- problem: There is no option for alternative action (what if users do not have an account). 
- solution: Implement a sign in button.

Register Screen
- problem: Unconventional to place password input before email input (does not follow design patterns). 
- solution: Switch the order. Can also be improved by using facebook/gmail accounts to register.

- problem: Does not follow conventional design patterns (navigation bar is cut off, difficult to understand what each tab means)
- solution: Use icons that follow design patterns. Include brief onboarding so user is familiar with app features.

Entry Screen
- problem: Difficult for users to know where they should input their answers (lacks a signifier for action). Also forces users to recall too many items (heavy cognitive load).
- solution: Create defined boundaries. For many items, use grouping and provide multiple choice options to reduce cognitive load.