You can request deletion without reinstalling MyFamily.
Email ColderWeatherDevelopments@gmail.com with the subject “MyFamily account deletion.” Send the request from your registered email address when possible. Include that address and whether you are asking to remove your own account or close the whole family account.
Do not send your password, device credentials, location history or information about your children by email. Support will verify your identity before deleting data.
Open your profile, choose “Request account deletion,” and confirm with your current password. The app records your request for support to process; it does not immediately delete your account.
Deletion covers your account details, sign-in sessions, linked device credentials and associated personal data, including location and usage records where applicable. Support will clarify how shared family records are affected before closing a family account. A request to delete one parent’s account does not authorize deleting another parent’s account.
A deletion request does not cancel a paid subscription. Contact support about any subscription and about the handling of shared records or backup copies. Any data that must be retained and its retention period must be explained when processing your request.