No. The AOne System continues to work all the time, 24/7 regardless of whether your Phone and/or Application is on or off. It is the AOne Hub and the AOne Devices that run your lighting system.
You only need your Phone for the initial setup of the System and for controlling your lights and making changes (adding new Devices, organising Spaces, etc.)
If you need any further help or have any questions, please email us at aone.help@auroralighting.com, raise a support ticket, using the link near the bottom of this page or clicking on the HELP button (a blue circle with a question mark) .