The Auping Connect app can easily be installed on multiple devices. Download the app on another phone or tablet. It must be connected to the same Wifi network as Auping Connect.
Then open the app on the new device to be connected and start by going through the installation. On the selection screen for a remote control, a pop-up will ask you if you want to connect to an installed system, choose existing connection here. The app will then find the installed Auping Connect and ask for an authorisation code. The first person to install Auping Connect can find this code under Settings -> Share. Enter this code and Auping Connect is ready to use.
If you don't get a pop-up: click on the text below the two remote controls.
Go through these screens on phone 1.
Go through these screens on phone 2.