Kodi on Amazon Fire TV Legit?

Hello All.

I used a guide to install Kodi on an Amazon Fire Stick. Kodi is not an “approved” app in the Amazon app store.

Full disclosure: I did this intentionally to run the Exodus add-on within Kodi before I understood the ramifications of this. I am now going to remove this add-on.

However, I still love Kodi. Is it legit to keep using it on the Amazon Fire device?

Thanks.