We have both subscription and perpetual licenses.

Subscription Licenses
License is time limited. Good for temporary or budget conscious installations. You can renew license anytime for additional one or two years. New license key will be sent upon renewal. All software updates are free.

Perpetual Licenses
Perpetual licenses never expire. They are good for long running production systems. You can decide when to upgrade to new version of the software. Minor software updates are free. Major software updates priced at a fraction of the cost of initial license.

Special volume licensing is available for Independent Software Vendors (ISV) and resellers. Please contact support.