The iTunes App Store offers downloads of several applications for Apple iPhone and iPod touch for free, as listed below. At up to $2 off, each is at the lowest price we've seen. The deals:

• Universer Unit Converter Pro HD: Unit conversion software
• Mammoth Web2Pic: Webpage downloading tool
• A Monster Ate My Homework: Physics-based puzzle game
• Lumiere: Photo-processing tool
• Smoody (pictured): Puzzle game
• Death Knight: Action adventure game
• Dots 3D: Digital version of classic game
• 24 Hours: Side-scrolling adventure game