Photo HDR is an amzing fully featured photo processing App!
It works across iphone4/iphone4s and allows you take photos with magic.This is the last photo app you will ever need!
-- Choose photo
* Photo Library
-- Image Effects
* 16 best Photo Effects
-- Unique Funny Mode
* Unique Scenery Mode: It takes the interesting composite photos, you can choose whether be in a movie poster, an art painting, a outdoor advertisement, or among the various types of greeting cards.
* Unique Tilt-shift and Color-shift Mode allows you to see the world from another angle.
-- Photo sharing
* Twitter,Facebook, Tumblr and Email.
This is a great app for any photography beginner or enthusiast!