Yep. And if they don't tell me until after I've bought the ticket, my first action will be to call up my bank and dispute the charge. I bought a ticket. Prett

Yep. And if they don't tell me until after I've bought the ticket, my first action will be to call up my bank and dispute the charge. I bought a ticket. Pretty sure there's sufficient well know meanings of that word to ensure requiring me to have a phone capable of running their app is "not fit for purpose" under consumer law in pretty much _any_ jurisdiction. You do though, need to be prepared to walk away from that Blizzcon/Overwatch/ArcticMonkeys/whatever show. (And my second action after calling the bank will be to find a way to let the artist/event I'm now not going to know exactly why...)