The Dream Apps today is offering their popular simple invoicing application Involer, for nearly 70% off at MacZOT! on May 30th. Involer is designed with simplicity and ease of use in mind, its one of the most simple, and easiest to use on the Mac. Involer is designed with simplicity and ease of use in mind, its one of the most simple, and easiest to use on the Mac. Get a full license for the Involer application for a highly discounted price through this exclusive promotion via MacZOT!