Hey murmichel,
Currently there’s no automatic / cloud mechanism for sharing plugin presets between devices, but this is a great feature request. I can’t promise when or if we’ll be able to make it happen (as we’re quite a small team), but I’ve noted it in our issue-tracking system.
You can transfer presets between the iOS and Desktop versions of the H9 plugins using the iOS Files App, but it has to be done by hand.
-Tom