You give your login credentials to the user who will review the metrics. He/She can login to the server with your credentials.
You create a developer account, registered at the Sense Server, and that's the one you use to do your developments, then reviews by someone else will be less compromising, as he/she will be using the same developer account credentials.
You are not breaking any Qlik Sense License rules, because that's one of Qlik features, the same account can connect up to 5 times from different devices.
Firefox is the best browser to support this idea, because it always prompt you for your login credentials.