We strive to build a software simple enough for use in classroom and powerful enough for olympic training. Enrich the video by adding arrows, descriptions and other content to key positions. Observe two videos side by side and synchronize them on a common event. Measure distances and times manually or use semi-automated tracking to follow points and check live values or trajectories. Export your analysis to spreadsheet formats for scientific study and further processing. Check our friends at Longomatch and Chronojump for other open source projects in the domain of sports.