Literally impossible to log in. You can only log in via "Magic Links" in which you must have access to the email on the same device. I can not access my work email on an external device for security reasons, and verifying my email on another device will still not allow my mobile device to sign in. In response to developer comment: No, there is no option to log in with email/password. Clicking "log in manually" ONLY provides a field for "Workspace URL" which always fails and says "not valid".