If you are already logged in:
From the main menu go to SETTINGS, then EDIT PROFILE in the upper right of the screen. Enter in a new password (twice) and hit save.
If you are not logged in:
Go to the landing page (the page that opens when you open the app) and click the ‘Sign In’ button. A page will show up asking for your email and password, and directly below that it says “Forgot Password?” Click this and follow the prompts that are emailed to you!