Used Ringo App on WP Phone
The other day. It failed at the payment page.
I went to the website, exactly the same, the App was just a crappy wrapper for a crappy website.
The Website worked no problem, probably some change in bank security or something, Edge had no problem of course.
Which is why I can keep using WinPhone - I just don't need or want almost every App. Most of the time a webpage works, train times, plane arrivals (there are working Apps for both mind you, FlightAware works perfectly including the cool Sky Camera thing).
Of course, I would love the Apps to all be there but I am not running all-Google, all-data Maps etc. and having to perform all the work to switch to a different launcher, HERE maps, none of which will work as well or are as tightly-integrated as maps/office etc are on WP.
It is about what you use the most, for me that doesn't mean FB, snapchat, instagram or the next latest must-have.
Luckily, dinosaurs can use a dinosaur phone, at least for a while yet.