I purchased a NumXL license before April 1, 2012. How does the new annual license affect me?
Customers who purchased a perpetual license before April 1 will not be affected by the introduction of the new annual license scheme.
As of April 1, 2012, New NumXL customers can choose between the original NumXL perpetual license or an annual (subscription) license at a reduced price. Both licenses come with 12 months of premier support and software updates free, though it expires after one year for perpetual licenses and cannot be renewed.