Parent Portal » Parent Square

Parent Square

Mater Dei High School uses ParentSquare for school communication, primarily with email, text and app notifications. ParentSquare automatically generates an account for each parent, using their preferred email address and phone number. We encourage parents to access their accounts so they can download the mobile app and update their preferences on when and how they are notified. We promise to only send you information related to Mater Dei High School. You can opt-out at any time (see instructions below). 


Here’s what you can do with ParentSquare:

  • Receive messages from the school via email, text or app notification 
  • Choose to receive information as it comes or all at once with a daily digest at 6pm 
  • Communicate in your preferred language
  • Comment on school postings to engage with your school community
An email invitation is automatically sent to Mater Dei parents from [email protected] If you did not receive the email, you can also follow the steps for self sign up with the same user name and password you have for Aeries: 
  1. Visit
  2. Under Register,enter Email or Cell Phone Number. You must use the same email/phone you provided to your school (in Aeries)
  3. Click Get Started.
  4. If the email/phone matches the information in ParentSquare, user receives an account activation email/text to register.


To opt-out of receiving notifications, you can: 

●    Complete the opt-out form by CLICKING HERE
●    Contact the Office of Communications at (714) 850-9532 or email [email protected] with your email, cell phone number and student's Aeries ID. 

You can also opt-out of:
●    Emails: Click the Unsubscribe link in any email you receive
●    Text Messages: Click the Opt-Out link in the first text message you receive from ParentSquare. You can also reply STOP to any subsequent text you receive. 
●    Phone Calls: Contact the Office of Communications at (714) 850-9532 or email [email protected] with your email, cell phone number and student's Aeries ID. 

If you are not a parent or guardian and are receiving notifications in error, please contact us at (714) 850-9532 or email [email protected]
*Note that even if you opt-out of receiving communication, you will still receive notifications for emergencies and other school information deemed important, such as attendance and lunch balances.

To opt back in:
●    Contact the Office of Communications at (714) 850-9532 or [email protected]
●    Text Messages: If you sent STOP, you can reply START to any text you had received or send START to: 66458