My niece is awesome at Hay Day and persuaded me to try it (and I liked it too till the FTP mechanic got too tiresome for me). When she started school (she's 5 now) they were all like 'if I have one apple and two apples how many apples do I have' and she was 'ok so I have six trees so I can produce 18 apples an hour and make 2 jars of jam in three hours but that means I don't have time to make six jars of jam before my ship goes...'
iPad retina mini, iPhone SE
Started playing a ton of Hearthstone
But also Imbroglio and Looty Dungeon. And Duolingo.