Within the app's hamburger menu (the top right tab on the home screen, an icon which looks like 3 lines) you will find the settings menu. It has the following options:
You can use this window to change the font-size displayed when viewing content such as questions or articles. Note this does not affect the entire app.
If you need to change your password this is the place to do it. Changing this password will also update your password used to login to the Experts Exchange website.
Remember Sign-on Credentials
When you login the app will remember your username. If you disable this option then your username will not be remembered by the app after logging out.
If you disable this then you will no longer receive notifications until you re-enable the option.