This app allows you to capture video from your device’s camera every 0.1 seconds, then play back the video frame-by-frame.  It also includes horizontal and vertical markers.

How to Use:

1. Place your device on a stable surface with the camera pointed toward the action.
2. Tap the red button to record.  Immediately perform the action you would like to analyze in front of the camera.
3. The app will shoot exactly 4 seconds of video, then display the tools:
   1. Scrub through the video to the first point of interest, then place a horizontal and/or vertical marker for “Time 1”.
   2. Scrub to the next time, and place a marker for “Time 2”.
   3. Repeat this process for as many data points as you need.
4. To shoot another video, reload the page and try again.

*** NOTE – It is very important that the camera be completely immobile during shooting in order for the “Time” markers to have a consistent view frame.