You can block it with Mac's firewall and verify zero network calls. Privacy policy at https://lucidvoice.app/privacy

Might open source if there's demand - testing that now

Some developers seem to do okay by writing open source software and selling it on the App Store. I’ve even paid for software like that :)

Does this do the formatting that wisprflow will do kind of thing?

Yes - makes corrections, removes filler words, formats naturally. That's what the Llama post-processing does