[esskay]

Lets try this another way.

You bought a display that exclusively integrates into Netflix, it can only display Netflix content, but you have to pay an annual fee to the display manufacturer for it to continue working.

It's January and you've just paid your annual subscription. But on the 15th of Jan Netflix decides to stop allowing your display manufacturer access, and your display becomes a useless brick.

Having only just paid for your annual subscription you'd want a refund - you're no longer getting access to the service you were paying for.

We can keep coming up with anologys but the fact remains that the app developer guaranteed access to a service which they can no longer provide. It doesn't matter if its an app, a display, or anything else. Your agreement is with the app developer, not Twitter. Your payments go to the app developer, not Twitter. If the app developers entire business is built around hoping Twitter never closes off their access then thats totally on them when things go south.