HD+ doesn't poll the MakerAPI as long as you're connected locally (same network). It requests all devices when the app starts up but after that relies on push messages sent from a separate websocket called /eventstream
If you're in cloud mode (not on same network as your Hub) HD+ does poll MakerAPI every few seconds (the same time that the native dashboard does) so that can be taxing if you keep the app open forever (ie: wall tablet). You can change the polling rate though to be much slower if you'd like.
Ideally though if you have an always on tablet you'd want to be connected on the same network as the Hub
I opened a thread to allow access to this /eventstream from the cloud.. I think this would be a BIG win for any app that uses MakerAPI from a resources standpoint.. both on the Hub and on the device/app. Feel free to comment here and maybe enough attention will help: Access /eventstream from cloud? Or, alternative ways for hub to 'push' updates to a mobile device
