@briankrebs hornets are easy to manage if you don't feel like waiting for a pro:
Wait until night when they're all home and not very active. Then spray the entrance with insect spray. There's stuff you can buy that sprays like a 10ft stream so you don't have to get close. Just cover the entrance with the stuff. If they're still around the next day, repeat.
There's also a whole YouTube genre of people killing these in different ways. It's a pretty interesting corner of YT, feeding some kind of reptilian revenge instinct against these insects in the most creative ways.
Good luck!
If we donate in the app, do you get 100% or does Google/Apple take a cut?
I think there's an issue...
(Used once) + (Still in use) ≠ 100%
What about used more than once and then disposed?