How much does the app cost? Technical Customer Support 23 April 2020 11:10 Updated The Radiant BLE App is free for all users to use in its standard form. Related articles I can't see my Bluetooth devices What is the Signal Range of the AOne System (App & Hub)? Which ports need to be open to use the AOne Hub? Can you use the remote to control individual rooms separately? What is the connection range of the Bluetooth devices?