Spot The Differences : IQ UP

Are you searching for ways to Improve Your Observation Skills and concentration skills through games?
Are you find totally free puzzle game?
The answer is "Spot the Differences: IQ UP"!

•Use a timer for improving your Observation and concentration skills.
•Support unlimited hints for unfamiliar "Spot the Differences" game users.
•Use the zoom tool for searching for 5 different spots faster!
•Everyone enjoys and also builds thinking skills, concentration, attention!