After you have registered for a Transparent Language account, sign in with your username and password at the ;Transparent Language Web Site. To get the mobile login code, select a language you want to study. On the language learning page there will be a Go Mobile link in the top right corner next to your username. The Go Mobile link is currently not on the opening home page.
On the following page you will be able to access your mobile password or you can use the QR code on that page to activate your app.