This app is a tool used by Rowing coachers to measure the stroke rate of rowers they are instructing. This app will give a coach an accurate stroke rate of the Rower they are instructing, this allows the coach to make sure the Rower is sticking to a certain rate. This app will save you a huge amount of money as you will no longer need to buy a fancy Stroke when you can just download this app which will do exactly the same and probably better!