Please have paid way to turn off ads
Edit 24/01/01: I also asked for a setting to turn off all sounds for use in libraries & other quiet rooms, but that setting is already there, the settings page scrolls down, my bad.
Response from developer
Thank you so much for your feedback about our Go Challenger app. The key can only be used to solve the puzzle and has nothing to do with the shows ads. But we will do best to minimize ads number. We will make sure to pass your feedback along for future planning.