From BraveWorld Networks Co., Ltd.:

Critical Seeker is a popular photo hunt game challenging the observational power of players. Each round players are presented with two virtually identical images, which are similar except five spots where they differ from each other. \'Critical Seekers\' are to spot these differences before the timer runs down. The game features an abundanct photo gallery, with more than 10 categories waiting for the enthusiastic seekers, including categories of pets, celebrities, scenes, cartoons, famous painting, sports, etc.
With a registered version, players will be able to enjoy more updates of exciting photos. In addition, the game is extremely to operate, the differences changes from time to time, together with a smart interface and interesting music. The trial version is free to download and to play without time or use limits. Go get it! And find it!