Every yogi account is unique. By using an email address, a yogi can log in via Momoyoga and view the schedule of your studio. The yogi can purchase a membership or class pass and can easily register for classes or courses. The yogi also has access to the app with his own account.
Therefore it is not possible to create a yogi account without an email address. If you still want to give someone without an email address access to your studio and you want to be able to register this, you can use a fictitious e-mail address. Please note that your yogi can not log in this way.
Because of the fact an email address is unique per yogi, it is also not possible to have an account in Momoyoga as a couple with each using their own names and with the same email address.