Dynamic App Design LLC has Content Blocker+ (iTunes Link) for the iPhone, iPod Touch, iPad in the iTunes App Store for FREE (regularly $1.99) for a limited time.

Content Blocker+ is a new kind of app. It works directly with Safari to block unwanted ads and trackers, which speed up web browsing, lower data usage and improve the battery life of your device.

Benefits of Content Blocker+ include much faster web browsing, low data usage, and improved battery life while using Safari.

Content Blocker+ does not track your web usage in order to work. Instead it provides a set of rules to Safari which then blocks the content automatically. Simply enable Content Blocker+ in the settings app and it ‘just works’.