[theshrike79]

It's the same with mobile games.

There are only a limited number of game mechanics, people install for the theme and come back because of it.

You can take a 1:1 copy of a game, reskin it 12 different ways and 1 of those might be a hit.

For apps like this there aren't that many ways to track what you're doing, but people like different kinds of UX.