I’m gonna be That Guy for a minute: if you enjoy using a Sudoku app, isn’t there one available on more acceptable terms, e.g. a single purchase or a IAP that removes the ads from this one? I’m not saying you have to pay like $3.99/week for a scam one, but more like pointing out that if you don’t like ads (as I also don’t) why not support the developers who believe in selling software to you for a few bucks rather than selling your annoyance to Google via Adsense?