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:

• TubePad for iPhone, iPod touch, and iPad for 99 cents ($1 off): YouTube player
• Sprinkle for iPhone, iPod touch, and iPad for 99 cents ($1 off): Physics-based game
• Knowtilus Pro for iPhone, iPod touch, and iPad for 99 cents ($4 off): Internet browsing tool
• Rock(s) Rider for iPhone, iPod touch, and iPad for 99 cents ($2 off): Motorcycle game
• STREET FIGHTER IV VOLT for iPhone and iPod touch for 99 cents ($6 off): Fighting game
• MONSTER HUNTER Dynamic Hunting for iPhone and iPod touch for 99 cents ($4 off): Adventure game
• MEGA MAN X for iPhone, iPod touch, and iPad for 99 cents (pictured, $4 off): Classic game
• LostWinds2 for iPhone, iPod touch, and iPad for $1.99 ($2 off): Adventure game