Spot The Differences! is the most complete difference game on these platforms, with 240 scenes, 4 levels of difficulty, and 4800 differences to spot. It offers a journey through odd and attractive scenes on various themes: travel, gastronomy, playground, sports, pets, wildlife. 3 game modes are available: Arcade, Select Pictures and Time Attack.
A LITE version is now available here:
http://itunes.apple.com/gb/app/spot-differences-lite/id336328328?mt=8
The complete version remains available here:
http://itunes.apple.com/gb/app/spot-differences/id334399926?mt=8
“Spot The Differences!” has also been released on PSP, in the PSP Minis collection.