No license required. Everything is a bit hobbyist oriented so things can be a bit clunky, but it just works.

For certain power levels, a license is needed, but that's not necessary for general usage. 

 Are you basically telling me that I’ll be able to have free radio-transmitted internet after I buy that device and tinker a while to set it up? 

 No, no Internet. It's just messaging.

Reticulum or Athena would be what you'd likely want to research if you're into P2P radio data. 

 Oh I see. Thank you. I’m always into tinkering so this could be something I might mess around with when fishing season ends. Lol.