Bloomz allows the parents to sign up using the phone number. This can be possible if -The teacher provides the parent with a Class Access Code and the instructions to sign up via phone number. The teacher adds the parent's phone number to his/ her class More Help - How to Sign in to Bloomz app with a Phone number? What to expect when my Child's Teacher adds my phone number to her class? How can I change my phone number associated with my Bloomz account? I am receiving TEXTS from my class teacher, how do I reply back?How to stop getting TEXT notifications?