I have a MUCH higher show-up rate when schedulers get a Google Calendar invite and they can RSVP Yes on their calendar.

Equally, if they then delete the appointment - they can chose "notify" me > and it shows on my calendar as no-longer-accepted the calendar event.

Not sure if this is default, it was an amazing feature of another Appsumo deal Meetfox but they are closing in a month and I need a replacement with that 2 way Google Calendar invite.