Animation needed for a uiview

Everything needs to be EXACTLY the SAME as Shopstyle app on app store. There are multiple images on a scrollview (grid) tiled up. When an image is clicked, it should pop up a view with the same animation effect as in Shopstyle app. This new view will have a back button which when clicked, will take the user back to original scrollview screen with again the same animation effect as present in Shopstyle app. Developers with experience in animation may bid. Max budget we have is $50 for this task.