Readabl is the developer of PaperKarma, a mobile app that lets users take photos of the unwanted mail they want to stop. The company automatically contacts the Mailer and removes users from their distribution list. PaperKarma can stop most unwanted mail that is addressed directly to them.In June 2013, Readabl was acquired by Repuation. The valuation of Readabl was undisclosed. Other terms of the deal were not released.