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, most are at or near the lowest price we've seen. The deals, all with applicable platforms noted:

• Solar Walk for iPhone, iPod touch, and iPad for 99 cents ($2 off): Solar system model
• Mathemagics for iPhone, iPod touch, and iPad for 99 cents ($2 off): Math learning tool
• iStudiez Pro for iPhone, iPod touch, and iPad for 99 cents ($2 off): Scheduling tool
• Quell for iPhone, iPod touch, and iPad for 99 cents ($1 off): Puzzle game
• Luxor Evolved HD for iPhone, iPod touch, and iPad for 99 cents ($2 off): Puzzle game
• ProCamera for iPhone and iPod touch for 99 cents ($2 off): Photo capture tool
• Smart Office 2 for iPhone, iPod touch, and iPad for $4.99 (pictured, $5 off): Microsoft Office editing suite