As an admin, you can manage (edit or create) the roles given to the users.
Roles

There are predefined roles that suit most of the needs, but you can also create specific roles by pressing "Create a new role":

Give it a name, select the associated permissions (you can also click on the "+" icon next to permissions to add more details) and select "Create" to add it to the list.
As you can see, depending on the user profile, you are able to decide if a user is able to view or edit the testing / monitoring / admin section in kapptivate.