The Say It Right course is provided on the basis of a one-person, one-site license. The registered users may install the application on mutiple devices, but they are entitled to use the content on one device at any given time. In order to use the content on another device, the user must log out. This procedure is required. The failure to log out of the course on one device will prevent the user from logging into the account on another device. This is described in detail in the document “Terms and conditions” on the main page.