To make joining ClassDo and your meetings easier for new users, we have disabled sign-ups and invites via mobile! This change will not affect existing users who have already set up their log-in via mobile.
To invite new users to sign up for ClassDo or to join your meetings, simply invite them via their email addresses. Just note that Gmail users will be on-boarded without the need for verification, while non-Gmail users will need to check their inbox for a verification code.