I am really confused as to why they think anyone would pay $2/month for solitaire... what happens if you don't pay, is it ad supported or just stops working?

There are cards missing from the deck.

That is devilish.

Ad-supported plus some other limited features such as daily challenges. It is the same on Windows 10 with the built in Solitaire app although I think it is $2.49 there(!)

Well if the subscription is for no add and you cancel the subscription the obviously the add just come back.

Also old people

WTF? Would anybody actually pay a MONTHLY SUBSCRIPTION for solitaire?