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

• Habits Pro for iPhone, iPod touch, and iPad for 99 cents ($4 off): Goal achievement tool
• Photo Measures for iPhone, iPod touch, and iPad for 99 cents ($4 off): Photograph measuring tool
• Guardian Saga for iPhone, iPod touch, and iPad for 99 cents ($1 off): Role-playing game
• Splashtop Remote Desktop for iPhone, iPod touch, and iPad for 99 cents ($1 off): Remote desktop access
• daWindci The Game for iPhone, iPod touch, and iPad for 99 cents ($3 off): Puzzle game
• Chuzzle for iPhone and iPod touch for 99 cents ($2 off): Puzzle game
• VinylLove for iPhone, iPod touch, and iPad for 99 cents (pictured, $2 off): Vinyl simulation tool