Yes, both AirGMS and AvailabilityCalendar.com offer a Free Trial.
AirGMS is designed for Large Enterprises, Medium Business and Small Business.
AvailabilityCalendar.com is designed for Large Enterprises, Medium Business and Small Business.
Pricing for AirGMS Starts at $20/Month when Billed Yearly whereas for AvailabilityCalendar.com Starts at $30/Year.
Some top alternatives to AirGMS includes EdSaas, Your Porter App, OwnerRez, ResNexus, MarketMinder, Escapia, Smoobu, AvailabilityCalendar.com, Lodgable and Vacation Rental Desk.
Some top alternatives to AvailabilityCalendar.com includes Travito, MyVR, Lodgable, Bookerville, Your.Rentals, 365Villas, Bookingmood, CalendarX, Rentals United and My Reservation System.
