Readdle have created some of the best business focused apps we've seen for iOS. And to celebrate being in the app business for 4 years, they are having a 30% off sale on all of their apps. In addition, they are giving away 4 iPads in a retweet contest.
Some other interesting stats. Readdle have seen over 3,150,000 people are actively using Readdle apps. 900,000 users of the Readdle Terra Browser, Scanner Pro has seen over 250,000 users on the iPhone.
Check out all of Readdles apps on iTunes.
To get details on the contest for a free iPad, check out the Readdle 4th Anniversary page on their site.