I am not aware of an app as such but you can make live easier in the /admin world by creating a new role like “order manager”(users->staff) . Only activate the “manage orders”. Then create a new user and assign to “order manager”. Login using your phone browser with new credentials. You will see that only dashboard and sales ->order are active. When clicking on the edit part of an order you get a properly wrapped screen where you can manage the statuses of the order and obviously review it.
