Mobile games usually get a bad rep as they’re usually asset flips and/or MTX-ridden and/or ad-filled, etc., and I’m sure this is actually the case for most games on the app/play store. But are there any ones that are actually good, maybe just something to pass the time with?
https://sudoku.coach/ is installable as a progressive web app and is probably the best sudoku app I’ve encountered. Extremely customizable and good for learning new solving techniques