Level 59 truly disappointed

I have been playing for a long time. I am SO DISSAPOINTED in this game. I love the concept. I play every 4-6 hrs to collect and feed my animals. I still watch AT LEAST 20 MINUTES A DAY IN ADS It takes me 2 days of this to earn 1 expansion. The amount you earn goes up little by little, but I spend more too. I personally think the developer is aware of this but doesnt do anything about it, It kicked out at every Comercial.

Tinkertina1979 about Wonder Zoo - Animal Rescue!, v2.2.0