[stumped]

well trying to be reasonable here...

"Why could you not have just used the original app? If you always intended to make this a subscription model then you should have opted to pay Kovid (or whoever) for the rights to the full app."

1. Nothing to do with Kovid, the previous developers were Multipie - easy to find as some help pages still point to them, and
2. they sold the full package - all the code, - all the rights - all platforms - not some subset - To Sam Cohen.

The IOS app had to be re-written ( and the android one will have to be also, if they choose to work on that) because operating systems and thus Apple, Google pre-requisites have evolved, the old app versions are non complaint now.
Arguably the previous owners picked a good time to sell, but as the price was confidential we don't know if Sam overpaid, underpaid, or got it at fair value.

Having said all that, if they try to take Android down a "subscribe or else" route, I'll drop it and use something else. Not so much Jihad, as " I paid for a lifetime licence already"

and as for bugs, its too soon to say if the initial release quality is better, worse then expected or par for the course. much will depend on how quickly the bug fixes now flow.

Not testing whether it works as a library manager with wifi and cell both OFF seems a big oversight. & Beta testers also apparently missed that one.

& for the record, I predicted that they would miss their Q1 2020 release target but they didn't