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

• Color Message Pro for iPhone and iPod touch: Message stylizing tool
• Deep-Sea Submarine for iPhone and iPod touch: Children's rhyming game
• Hope's Quest for iPhone and iPod touch: Action puzzle game
• SimpleTimetable for iPhone, iPod touch, and iPad: Planning tool
• Pocket Ninjas for iPhone, iPod touch, and iPad (pictured): Action game
• Scopy for iPhone and iPod touch: Twitter client