Abstract: Currently, mariners do not have an accurate way to measure work safety when at sea. The Marine Safety Analysis Software Application is designed to improve safety and prevent accidents when used by mariners. The application analyzes motion data obtained via multiple sensors placed on the ship. These sensors gather metrics which are transmitted to the application. The application then compares the data to user inputs and based on predetermined metrics a “work safety category” is created. Depending on the “work safety category”, the user decides whether the task at hand should be started, continued, or stopped. This application may help prevent accidents by providing a clearer safety assessment to all those who work on the water.