Very straightforward job to do.
This is my app live on the App Store
Currrently there is 75 pics to guess.
Your task is :
* Replace those 75 pictures (not UI images just one to guess) with around 300 new pics inside xcode project
* to do that you need to edit picture.plist file (see attachemt for .plist structure) that is part of resource file
Pictures wil be provided from my side toghter with xcode project file.