Do you want to be a champion on velo cycling or something like that? Or your friend? It is hard work and requires a lot of excercise. This application will help a little bit on this project.
Try and buy a full version to send and analyze your excercise.
Set the target lap time and cycle. With this app your trainee can measure total time and time of each lap and see if you are before or after the target. After the workout you and your trainee can see each lap time and send the data as textmessage or as email on different formats and analyze it later on with PC.