As one longtime H9 user to another, you may find this somewhat interesting:
I know my way around H9 pedal navigation, but I used the H9 Control app almost exclusively for the heavy lifting. Especially with juggling 3 of them; Android or laptop Bluetooth.
The exact opposite with the H90. Not a dig at H90 Control. I really like the layout, and it certainly gets used. It just speaks to the design advancements that I now do most everything by navigating the H90 pedal itself.
Granted, it’s within easy reach right now, on the ‘experimenter’s perfboard’ (mixer stand). Still working out the possibilities & best integration into the system.