GRUPZ: Vacation rental availability calendar to embed on any website. Connect to iCal calendars from Airbnb, VRBO, HomeAway, Google Calendar and any iCalendar URL. Get started for free, simple monthly subscription, cancel at any time. Vacation rental availability calendars to embed on any website. Connect to iCal calendars from Airbnb, VRBO, HomeAway, Google Calendar and any iCalendar URL. Get started for free, simple monthly subscription. Exposes no private data. Not just for vacation rentals: they're great for embedding a simple daily/monthly view of any iCal URL's events.