Even if your just using the app side the arc still have to do the hosting and accounts side
This means there is two prices
1 same as the digiair price ish! but just slightly cheaper - ARC deals with Keyholders
2 hosting only so just to the app - alot cheaper - No actions from ARC at all!
got a demo unit working fine with just 12v 0v and N/O trigger connected
you dont have to use the keyswitch input
so a straight 3 wire connection at basic level
the contact id dial capture is good through the app - up grade for me at home!
set up and program on the Installers app - MiniAir
then customer logs in and set up notifications for them on there app - My Home Alarm
might get time later do a video and add link