want to develop iphone app alike Drinkspiration By absolut vodka

anyone knows how "Drinkspiration By Absolut" developed. I want to do something similar to the card 开发者_如何学Goflipping effects. any hints on what should i learn and where do i start to do that? many thanks...

You just need custom graphics and the help of Core Animation. I suggest you buy a book on iPhone animation, as it will teach a lot more than the internet will.