Your typedesk account is the email you use to log in to typedesk. You can log in to up to 3 different devices at the same time with the same email address.
Need more devices? You can add a seat to your plan, and use another email to log in to typedesk. You can then share your folders with the account newly created, and use typedesk on up to 6 different devices at the same time.
If you use typedesk on more than 3 devices, the first devices you logged into will be automatically logged out.