Good app with a pretty easy layout and good structure, with excellent info around tracking and logging data from your trainings. However, the speed measuring and bowling recording functions are limited to only iPhones and highend androids such as the samsung S-series due to the 240 fps recording required. Samsung A-series is NOT compatible due to it not allowing third party apps to access this function, and their are no work arounds. Being able to import bowling vids into the app would solve it