The app does autoplay on iOS Safari for most people, but -- as Marc described above -- if you have set the safari security options to disallow autoplaying videos, you'll have to allow them for
home.camect.com to get them to work. Did his instructions solve the issue for you?
Another similar thing that we've run into is that with safari settings at their defaults, video will not auto-play if your phone is in power-saving mode due to low battery. In that mode, you'll have to tap to get the video to play. After you charge your phone, if restarting the app does not suffice, you may need to enable and then disable low power mode to get it back to autoplaying video.