We also have Terms of Service documentation on the home screen of the application for both mobile and web version. By signing up and logging into the app, they are agreeing to these terms.
On the web version, the Terms of Service link directs the user here: http://www.evertrue.com/alumni-community-web-eula/
On the mobile version, the Terms of Service link opens up the EverTrue Alumni Community End-User License Agreement. A screenshot of that is below.