This app is a lite version of measurement application for Horsecall. Horsecall is a racehorse training analysis system. Using this app, you can record and analyze speed and horse location during the training session. You can check the latest one training course and speed graph. In addition, this app has a voice notification function of speed (furlong speed). You will be notified by voice when furlong speed is less than 25 seconds. Please use voice notification function with Bluetooth earphone. Notice: Continued use of GPS in the background can dramatically decrease battery life.