The annual subscription, which offers a single upfront payment at at discount of 10-40% over the hourly rate, enables an Amazon Elastic Compute Cloud instance type to have unlimited use of the software for the next 12 months. Annual subscriptions are be available for more than 90 software products from ISVs such as Alert Logic, Barracuda, Citrix, Fortinet, MicroStrategy, Progress Software, Riverbed, Sophos, Tenable, and Vormetric.