Xmotion Pro is an application for analyzing a form of sports and provides some advanced features in addition to the basic features of Xmotion Free version. User can generate a strobe video or a film strip image by automatic or manual method from a video which is taken by iPhone/iPad camera. User can also compare 2 videos or 2 strobe videos, for example compare a strobe video of a student with a strobe video of a coach. Xmotion Pro provides a capability of postscript so that user can add postscripts of hand-writing characters and figures on a strobe motion still image.