Roll Period

RollPeriod transforms your smartphone into a practical tool for vessel motion analysis. Using the built-in accelerometer, gyroscope, and GPS, the app provides real-time measurements and insights: Roll and pitch periods calculated with zero-crossing detection and FFT analysis. Accurate vessel speed by combining GPS and IMU data. Interactive visuals including a compass, wave direction, and real-time charts. Risk assessment with alerts and recommendations for safer navigation. Data import and export with CSV file support. Whether you are a sailor, marine engineer, or navigation enthusiast, RollPeriod helps you better understand vessel dynamics and make safer decisions at sea.