Bear in mind that the ad-free version is an independent app, thus, to get the ad-free version, you need to download Trivia Crack (ad-free) from the app store.
For that reason, it is possible you are still using the regular version instead of the ad-free version of the game. Therefore, we recommend that you delete the regular version of the game to avoid confusions once you have downloaded the ad-free version of the game.