[dawnerd]

Tweetbot has done that too - conveniently right before twitter cut off some api access making the app just an expensive ad free twitter client. I have no doubt they quickly pushed out v4 just to get a bump of cash. V5 just came out too (although this time a free upgrade).

[bdcravens]

v5 does prompt for an IAP (they're calling it a tip)

Personally I paid the highest option ($4.99) because I know I've gotten plenty of value out of it, but I suspect most won't and there'll be pitchfork gathering about their "spammy popups"

[lancewiggs]

I paid for the upgrade just before deprecation of the API and except Tweetbot, and now their spammy pop ups are turning my admiration to annoyance and worse. The only reason I see for it is that they have decided they product (through Twitter’s actions) is doomed and are trying to milk has hard as they can.