If you don’t like it, then don’t buy it. At the moment people are both complaining about free apps and games with in-app-purchases and thinking even $0.99 apps as “expensive” if there is anything even closely similar available for free. There is nothing completely free – if something is free, usually you are the product in some way, may it be ads or your privacy. Or then it’s something VC backed and those all end happily, right? Developers should make their apps more expensive accordingly to what they do and people should still buy them if they find them useful. And yet there are still people who have spent hundreds of hours using something but find that they haven’t gotten enough value out of it to pay a couple bucks for it.
Vesper seems to be very well designed app and while sync is a thing clearly needed, it does what it is intended for already. I’m not going to buy it because I don’t seem to have enough thoughts to put them into an app like this, but I do see value in it.