We will probably end up using the one by WooCommerce because it will integrate best with your eCommerce store I have set up. This is what it would look like if you used that Square App and it also allows bookings from Instagram, Facebook and more. Many more to check out!WooCommerce BookingsWooCommerce AppointmentsEDD BookingsBooklyAppointment Booking Calendar by BirchPressBookedBooking CalendarAmeliaBooking Calendar – Appointment Booking SystemAppointment Booking CalendarTeam BookingMotoPress Hotel BookingSalon Booking SystemCM Booking CalendarBooking & Appointment Plugin for WooCommerce