To celebrate its third anniversary, Readdle has announced a special discount on all of its products. The sale, which technically began August 1st, is set to last for 48 hours in total and reduces the price of every Readdle app, including ReaddleDocs and Calendars, to $1. The company is also giving away three iPads to Twitter followers. To enter the giveaway customers must first download any Readdle title, then follow the company on Twitter and retweet a special message. The contest will remain open until August 7th, after which three random winners will be selected.