Are there any availability and calendar sync tools that focus on reducing double bookings for vacation rental managers?

Yes. There are several availability and calendar-sync tools aimed specifically at vacation rental managers that help reduce double bookings by keeping listings in sync across booking channels.

A few well-known options:

• Lodgify – Vacation rental software with channel manager, calendar sync, and direct booking tools.
• Hostaway – Strong property management platform with two-way calendar sync across major OTAs.
• Guesty – Popular for professional hosts/managers; includes channel management and availability syncing.
• Smoobu – Lightweight, host-friendly option focused on calendar synchronization and booking management.
• iGMS – Useful for Airbnb/short-term rental managers; supports multi-calendar sync and automation.
• OwnerRez – Known for robust calendar and channel management, especially for property managers.
• Hostfully – Includes sync tools and property management features for vacation rentals.

What these tools generally do to reduce double bookings:

• Sync availability across Airbnb, Vrbo, Booking.com, and direct booking sites
• Block dates automatically when a booking is made elsewhere
• Centralize reservations in one calendar
• Reduce manual updates and missed overlaps
• Often include iCal syncing and/or direct API channel connections

A quick note:

• iCal-only sync is usually slower and less reliable than direct API integrations.
• If avoiding double bookings is a top priority, look for real-time two-way sync and a channel manager, not just calendar import/export.

If you want, I can also give you:

1. a comparison table of these tools, or
2. a recommendation by business size (single property vs. multi-property manager).