Your account is an email combined with a 4-digit NUMERIC-ONLY (!) "password" and once you are hyper-securely logged in the amount of usability pain a single piece of software can cause will immediately become apparent.
How can anything paid by a big corporation be anywhere near as bad as the Sky apps is completely beyond me.
Their iOS app is somewhat usable and I was happy I could just cast GoT using my Google Chrome until I noticed that casting can only be done in German. The English original version wasn't available for casting but perfectly accessible on PS4 app, Mac app and web app.