Follow the instructions in the guide above. The getting started on Houfy guide has the import link. Import it into Houfy. Houfy is completely free. Get your listing complete with calendar sync, seasonal rates, etc. Set up payment with Square/Stripe if you like.
Then when ready, you are going to click to have the Houfy listing go into FabStayz. I don’t know what that click is yet. Waiting to hear as I think it’s being programmed right now. Let me know if you have any questions while setting up your Houfy listing.
If you are signing up directly through FabStayz, then yes you are going to pay. This free trial is being offered by Houfy. Their software powers the FabStayz platform.