Chose x.ai
I have tried many apps. They just do not have all the options that x.ai does. Some have better APIs, like Acuity, but the interface for booking is a bit lackluster and the price for the features is just not there for me.
Invited by the Vendor
A de minimis incentive was given to thank the reviewer for their time. The incentive was not used to bias or drive a particular response, nor was the incentive contingent on a positive endorsement. TR verified that a representative sample of customers was invited. More Info