All purchased licenses of SigmaXL and DiscoverSim come with a maintenance plan which includes one year of free support and upgrades.
Customers can choose to renew their maintenance plan with us prior to the expiry of their one year of free maintenance. When maintenance plans are renewed customers will continue to receive free upgrades to the Current Versions of SigmaXL. Although SigmaXL licenses do not expire, older versions may become incompatible with more Current Versionss of Microsoft Excel and associated operating systems which may affect functionality. Additionally, without a valid maintenance plan, customers do not receive priority support for any issues they may encounter. For these reasons we recommend renewing the maintenance plan.
The cost to renew maintenance is only 20% of the listed retail price.
For more information on our maintenance program, or to renew your maintenance, please contact sales@sigmaxl.com