For some airlines, we support "one-touch button" roster download directly from the airline's crew portal. In order to do this, we need your username and password to get direct access to the airline's crew portal. At first-time app usage, we ask you to provide these details and you need to confirm that we store them.
At our servers we do not store any of your username's and password to access airline crew portal, they are stored on your own device only and are encrypted. We store your RosterBuster user account details and the roster events which are converted to our generic format which is displayed in the app and our website.
If for any reason, you are uncomfortable with this, you can simply copy and paste your roster into the upload page of RosterBuster (https://www.rosterbuster.com/upload), and we will decode it without you giving us any of your personal details.