"Perpetual License" of BayesiaLab Professional Edition refers to a license rental with an infinite number license periods, i.e. it is the equivalent of an infinite number of pre-paid, consecutive one-year license terms. Despite the de facto perpetual nature of this license type, it is technically treated as a license rental with pre-programmed annual renewals. This means that once a year the end user needs will be prompted to confirm the automatic reactivation with the BayesiaLab License Server.
Maintenance and Technical support are available separately by annual subscription.