Basketball and volleyball players rejoice. There's a new tracker just for you that monitors how you jump. The tracker, called VERT, monitors how high you jump, your jump rate, and tracks other jumping-related data, too. VERT sends the information wirelessly to your iPhone or smartwatch, and there's a companion app for coaches who want to monitor players in real time. VERT is priced at US$124.99, and the basic companion app is a free download at Apple's iTunes-based App Store. The app for coaches costs $99.99 and includes the ability to monitor for potential injuries before they happen.