You can assign maximum of five users for any check that's being added.

The different access level in Freshping are;

Owner -  The account owner can log in, have full access to the dashboard and can view details of any check. Will be able to add, edit and delete the checks. Can add users and change their access levels. 

Admin - Have the same access level as the owner except that admin will not be able to remove a owner from the account. 

Readonly - Can log in into the app but can only view the the checks that they are assigned to them. 

Contact - Will only receive alerts.