The possibility that not many Windows users would be ready to buy a Mac just to run Pleco's desktop version might contribute to Mac sales being poor enough. (I have no idea how many Pleco users have a Mac, how many have a Windows PC, and how many have both.)If, however, Mac sales are poor enough that I reach the conclusion that Windows is likely to be a money loser for us, crowdfunding would be a way for me to let people prove me wrong on that.