There are four BTrackS™ configurations, each consisting of a BTrackS™ Balance Plate and one BTrackS™ software application. Your purchase comes with a one-year warranty on the BTrackS™ Balance Plate, and a one year unlimited testing license with free software support and upgrades. After one year, there is a $19.95 renewal cost for the next year of unlimited testing, software support and upgrades. For orders outside of the United States, or custom orders including multiple software applications for a single BTrackS™ Balance Plate, please contact our sales team directly via our contact page.