AppointmentQuest already exists so I am not sure why Updox would duplicate that service. !
For the same reasons other companies duplicate services or products that someone else has already made...there is a market for it appropriate for them. AppointmentQuest does one thing. This service through Updox, for starters, would allow someone contracted with Updox to have this service and only pay one vendor. They may also design it with different features. This is one of the many things us marketing types sit around and figure out for businesses.