The iTunes App Store offers downloads of several applications for Apple iPhone and iPod touch for free, as listed below. At up to $3 off, each is at the lowest price we've seen. The deals:

• Zombie Kill Zone for iPhone, iPod touch, and iPad (pictured): Action game
• Cover Orange for iPhone and iPod touch: Physics-based puzzle game
• iDoWhat for iPhone and iPod touch: Task management utility
• Cinderella for iPhone, iPod touch, and iPhone: Interactive children's storybook
• Puzzle Cop for iPhone and iPod touch: Puzzle game