I have Cathe Live. I've been using it with my tablet and Chromecast. Now with the app for the IPhone, I got an hdmi cable and a lightening AV adapter so I could use Cathe Live via my phone. It mirror screens to my tv. I love the app! Here are the problems...when I pick a workout, the "description" shows for maybe 2-3 seconds then disappears. So I have no idea of what equipment I need. Also, I can't seem to add a wkout to the Favorites. Sometimes it will add it, other times it won't. Please help.