I don't get why people like apps so much. I like to just go to the full site even on an iphone. The apps and mobile sites don't allow you to zoom. I'm not sure why everyone likes disable the zoom. The app is pretty much just the mobile site in app form most of the time.
Droids are easier to program for then the iphone. Droids use java, and the iphone uses xcode. Xcode is apples version of c. The easiest by far is win8 phone. Microsoft makes very good development tools.
btw, easy really means faster. Xcode isn't hard, but it does have a longer learning curve and more time consuming development.