I wouldn't be so sure. The app has been the talk of Reddit and many tech circles for a few weeks. Many are saying that without Apollo they won't use Reddit anymore. So if someone were to buy it and say "The same Apollo you love is now $9/month" I bet they could retain a number of users, specifically because there won't be other competitors (all competitors will be in same boat wrt to API pricing and not allowing ads).

I've heard these new API fees would result in monthly subscription numbers between $2 and $5/month. I'd pay $5 to keep my third party app (which isn't Apollo). I fully believe that _most_ users aren't interested in paying these fees. But I'm skeptical that there are so few that _none_ of these 3rd party apps will stay afloat. I've got to believe that if none of the current big players want to stay in, someone else will come along soon.

Presumably if someone were to offer to buy it it's because they intend to stand up a different back-end and try and start a new platform?

There is one obvious candidate to buy it... but that was shot down as some kind of threat.