To access the main FOS application on your iPad follow the below instructions.
Open the device app store and search for "Citrix Receiver'.
Install the application onto your device. If you have not done so already you may need to create an account with the device manufacturer.
Launch the Citrix Receiver Application
Select the Add Account button and input the Stellar Cloud address that you have been issued (go.stellar.aero)
Launch the saved application
Log into your FOS app as you would on the desktop