The iTunes App Store offers downloads of several apps for Apple iPhone, iPod touch, or iPad for free, as listed below. At up to $3 off, each is the best deal we've seen. The deals:

• My Data Usage Pro for iPhone, iPod touch, and iPad: Phone data plan use tracker
• Evomail for iPhone, iPod touch, and iPad: E-mail client
• Fury of the Gods for iPhone, iPod touch, and iPad: Tower defense game
• Jones On Fire for iPhone, iPod touch, and iPad: Running game
• Flying Fox for iPhone, iPod touch, and iPad: Platform game
• THOR: Son of Asgard for iPhone, iPod touch, and iPad: Action game
• Toy Defense: Relaxed Mode for iPhone, iPod touch, and iPad: Tower defense game