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

• Agenda Calendar for iPhone, iPod touch, and iPad for 99 cents ($1 off): Calendar tool
• Dungelot for iPhone, iPod touch, and iPad for 99 cents ($1 off): Puzzle game
• SkyView for iPhone, iPod touch, and iPad for 99 cents ($1 off): Stargazing tool
• Hunters 2 for iPhone, iPod touch, and iPad for 99 cents ($4 off): Role-playing / strategy game
• Popsicolor for iPhone, iPod touch, and iPad for 99 cents (pictured, $4 off): Photo filter tool
• PicsPlay Pro for iPhone, iPod touch, and iPad for 99 cents ($1 off): Photo editing tool
• Grafio iagrams & ideas for iPhone, iPod touch, and iPad for $6.99 ($1 off): Business diagramming tool