Finally, if you were subscriber to Twitterrific for iOS, we would ask you to please consider not requesting a refund from Apple. The loss of ongoing, recurring revenue from Twitterrific is already going to hurt our business significantly, and any refunds will come directly out of our pockets – not Twitter’s and not Apple’s. To put it simply, thousands of refunds would be devastating to a small company like ours.

Source - Twitterrific: End of an Era • The Breakroom

I had missed to post this, but this passage was painful to read.