The iTunes App Store offers downloads of several apps for Apple iPhone, iPod touch, or iPad for free, as listed below. At up to $4 off, each is the best deal we've seen. The deals:

• Evereader Pro for iPhone, iPod touch, and iPad: Document scanning tool
• The Curse for iPhone, iPod touch, and iPad: Puzzle game
• Sticky Notes+ for iPhone, iPod touch, and iPad: Note-taking tool
• The Blocks Cometh By Halfbot for iPhone, iPod touch, and iPad: Platforming game
• Extinction Squad for iPhone, iPod touch, and iPad: Reaction time game
• Hungry Shark Evolution for iPhone, iPod touch, and iPad (pictured): Shark feeding game
• Jar on a Bar for iPhone, iPod touch, and iPad: Aerial combat game