While I loved Alto's Adventure (and some more of those), and it was by no means aggregious, it does include things like watching ads to continue your run (at least once), and other microtransactions.
I don't think I'm a reactionary, and this is a problem on consoles and PC as well, but there is a lot of difference between mobile games and games where you buy an entire experience and everything relevant is designed into that system. Nothing is gated, you can make it easier through a difficulty setting, you can't make it easier by paying extra dollars.
Note that I avoid anything last 5 years EA and similar that can't for the life of them design games that respect their customers.