Remind.com is a free, safe messaging service for teachers to communicate with students and parents via text or email. Teachers sign up for an account, create classes or groups, gather subscribers, and start messaging. This is all done without ever sharing their personal cell phone number, or collecting phone numbers from their students or parents.
Tutorial Link: Remind
Application Link: https://www.remind.com/
Tutorial Type: text-based
Price: free for basic use; upgrade costs vary