Visit this page to get the app for whatever device or computer you are using, or search for 'Komodo math' in the Google Play store.
Once you've downloaded it, open the app and you'll see this log in page:
Sign in with the email address and password that you used to sign up on the web page (If you haven't done this yet, visit our website to sign up to your free trial!)
And you're good to go! Visit our article on Getting Started to, well, get started...