QRacing is a Lap timing analytics application for motorsports in use with Qstarz GT devices. It provides diversified features to analyze race data, as well as record video on your phone and overlaying with logged data. Please note: Only Qstarz GT BLE GPS device owners will be able to use this app. The main features are as below: 1. Apply to Drag Race and Circuit Race 2. Lap timing and plot chart analysis 3. Video recording on your phone and sharing with data overlay 4. Lap, Sector, and Split t