You can delete your Priority Matrix user account by going here: https://sync.appfluence.com/accounts/delete_user
Before deleting your account, you should uninstall all Priority Matrix apps and add-ins from your device so that you don’t accidentally register for an account again.
If you are an account admin and need all users deleted, reach out to us at helpdesk@appfluence.com or our contact page https://sync.appfluence.com/accounts/contact