A lot or a little?
Parents need to know that Mario Kart Tour is arcade-style racing game for iOS and Android devices. Like other Mario Kart games, players can use bombs, turtles, and banana peels to take out the competition, though it's all rather cartoony, so there's no blood or gore. Otherwise, this has no objectionable content. Commercially, players earn coins by playing, and can use these coins to buy new characters, vehicles, and other items. Players can also buy coins, and other items, in the game's store, including bundles or a monthly subscription that gives them exclusive vehicles, races, and equipment as well as more coins when you win. The game's also the latest in a long-running series, one that's created multiple games, toys, cartoons, and more. You also need to have a Nintendo account and be willing to link to it to play (though it is free and can be set up through your phone or tablet). Read the developer's privacy policy for details on how your (or your kids') information is collected, used, and shared, and any choices you may have in the matter, and note that privacy policies and terms of service frequently change.