What iphone app can i use to make my photos look vintage?

I've seen photos which I no are taken on an iphone app but i don't no what app can anyone help me? Here are examples of the photos:
http://marie-fleurcameralucida.blogspot.co.uk/2012/09/strandbad-wannsee-lido.html

You can use Instagram, or you can wait till fall, when iOS 7 comes out, they have put photofilter option in original camera app.

Camera Awesome is quite good; loads of different styles to chose from.