To install the Secure Application on a Secondary Device:
1 - On iOS, make sure you can read the Authorization QR Code (you should be able to see the image provided by the camera as if you were taking a picture.)
2 - If the application is open on the Primary Device, exit and log in again.
3 - On the Primary Device go to Settings -> System and select the "Authorize Device" button.
4 - Point the camera on your iOS device to the QR Code presented.
If the problem persists, please contact us by creating a support request here.