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 $5 off, each is at the lowest price we've seen. The deals, all with applicable platforms noted:

• Amazon: Hidden Expedition for iPhone, iPod touch, and iPad for 99 cents ($3 off): Hidden object game
• Dead Space for iPhone and iPod touch for 99 cents ($6 off): Survival horror game
• ProCamera for iPhone and iPod touch for 99 cents ($2 off): Camera replacement application
• Super Crate Box for iPhone, iPod touch, and iPad for 99 cents ($1 off): Arcade-style action game
• Don't Run With a Plasma Sword for iPhone, iPod touch, and iPad for 99 cents ($1 off): Platforming game
• Percolator for iPhone, iPod touch, and iPad for $1.99 (pictured, $1 off): Photo editing software