The EponaCam App is used in conjunction with Metron software running on a PC. The App sends images to Metron via wifi. It works with both Metron-DVM and Metron-Hoof as long as they are version 8.1 or higher. It is the easiest way to get images of the hoof (or other) into Metron. Also available is the "EponaCam Cradle" which turns any Smart Phone into a specialized Hoof camera! This App will not be useful to you if you do not have a copy of the Metron software (version 8.1 or higher). See www.TheCompleteEquine.com for more details.