Best Photo apps for IPhone / IPad of the year

There are some best photo editing apps for IPhone / IPad. Which are announced in 2010 Gem award. 

These apps are best awarded in following categories.

• Drawing App of the Year 
• Photo Effects App of the Year 
• Photo-Sharing App of the Year 
• Geotagging App of the Year        

Drawing  App :
             > SketchBook Pro :

                         For IPad user its a best app which fulfill their Sketching vision. Price is only 8$. 
                         (check reviews)
Photo Effects App :
             > Hipstamatic:

                      For IPhone user. When you take a picture from your cam it apply effects on picture. 
                      price is only 2$. 
                      (check reviews)
Photo-sharing App: 
             > Instagram :

                     For IPhone user.Take picture and apply many effects on it and share it with your friends.
                     it is free of cost. 
                     (check reviews)
Geotagging App: 
            > Geotag Photo:

                    For IPhone user. Tags your Photos where it was taken to remember the places.
                    price is only 4$. 
                    (check reviews)