The iTunes App Store offers downloads of several apps for Apple iPhone, iPod touch, or iPad which have dropped in price, as listed below. At up to $4 off, most are at or near the lowest price we've seen. The deals, all with applicable platforms noted:

• Nibbly's Nose for iPhone, iPod touch, and iPad for 99 cents ($2 off): Children's learning tool
• Living Earth for iPhone, iPod touch, and iPad for 99 cents ($1 off): Clock and weather tool
• Great Big War Game for iPhone, iPod touch, and iPad for 99 cents ($2 off): Strategy game
• Galaxy on Fire 2 for iPhone, iPod touch, and iPad for 99 cents ($4 off): Space shooter game
• Roads of Rome 2 for iPhone, iPod touch, and iPad for $1.99 (pictured, $3 off): Strategy game