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:

• Prince of Persia Classic for iPhone and iPod touch for 99 cents ($1 off): Classic platforming game
• TETRIS for iPhone and iPod touch for 99 cents (pictured, $2 off): Classic puzzle game
• Audubon Mushrooms for iPhone, iPod touch, and iPad for 99 cents ($4 off): Mushroom field guide
• Infinity Blade for iPhone, iPod touch, and iPad for 99 cents ($5 off): Action adventure game
• Word Wit for iPhone, iPod touch, and iPad for 99 cents ($1 off): Word choice training software
• Endomondo Sports Tracker PRO for iPhone and iPod touch for 99 cents ($3 off): Personal trainer
• Launch Center Pro for iPhone and iPod touch for $1.99 ($1 off): Shortcut tool