Ah yes of course - although that is what I was alluding to in the original version of my above post, I forgot to include the specifics, so have revised my earlier post accordingly.... See below

Roger, you need to make sure SkyDemon is listed in ‘Settings / Privacy / Local Network’ on your iPad. If not, the
(edited) process I refer to above should prompt SD to request addition to the list of apps approved for connection to the Local Network. (If not I need to have a further look at this). My own iPadOS 14.4.2 iPad mini 5 currently has 3 apps listed in the ‘Local Network’ folder, namely ‘Aircrew Update’, ‘PAW Firmware Updater’ and ‘SkyDemon’, though others will obviously vary - yours, for example, may well currently list no apps at all.
N.B. For anyone else reading this, it
ONLY applies to devices running the more recent versions of iOS / iPadOS14. The ‘Local Network’ field does not exist on earlier versions of iOS. And for all you Android Users out there feeling smug, you have your very own version waiting to trip you up shortly.
Regards
Peter