This app is a multi-function speedometer. It contains the following features:1) It could record various moving data, such as distance, speed, acceleration, path, coordinates, altitude, location and time.2) It could show moving data, paths and graphs in real time.3) Users could set speed alert value to some level. When the speed exceeds the alert value, it will alert users.4) Units (Metric or Imperial) are customizable.5) Users could also add text or voice notes to the data.6) All data could be exported (csv format) for post process.