How to Select a License

StresStimulus's licensing structure includes flexible options to meet common business and technical needs and a broad range of budget requirements.

  • Select an edition

    Select one of the following editions: Pro, Enterprise or Service Provider (SP). by navigating to the corresponding product table on the order page.

    • Pro Edition is recommended for Web applications of simple to medium complexity.
    • Enterprise Edition is a complete load testing solution for Enterprise applications of any size and complexity.
    • SP Edition is for QA companies providing testing services to others.
    • Enterprise / SP Editions support distributed and cloud testing with multiple test cases.


    For a complete comparison, check the Edition Comparison Chart. Edition upgrades are available. The cost is the net difference between the price of the new license and your license purchase price.

  • Select a number of virtual users

    Select between 25 and 250 (Pro Edition) or between 25 and 10,000+ (Enterprise and SP Editions) by finding the corresponding column in the licensing table.

    • Pro Edition licenses have a choice of 25, 50, 100 and 250 VUs.
    • Enterprise Edition licenses have a choice of 25, 50, 100, 250, 500, 1,000, 2500 5,000, 10,000 or more VUs.
    • SP licenses have a choice of 100, 250, 500, 1,000, 2500 5,000, 10,000 or more VUs.
    • VU upgrades are available. The cost is the net difference between the price of the new license and your license purchase price.
  • Select license duration

    Select one of many licensing periods: perpetual, annual, monthly or quarterly subscriptions, or a weekly pass by finding the corresponding row in the licensing table.

    • Perpetual licenses never expire.
    • Monthly and Quarterly subscriptions are auto-renewable. Cancel future charges at any time.
    • Annual licenses and weekly passes include one week of use from the order date and are not auto-renewable.
  • Add Microsoft Dynamics Module (optional)

    • If you want to load test Microsoft Dynamics applications, select the Dynamics module option that simplifies creating test scripts.
    • To add this module, in the checkout page check the Microsoft Dynamics module box.
  • Upgrade to A Floating License (optional)

    • With a per-machine license, you can use StresStimulus on one controller machine with the option to move it to a different controller. By default, all pricing is provided for per-machine licenses.
    • A floating license allows to divide VUs between multiple controllers, which can run tests independently. It is an efficient way to share licensed VUs within a team conducting several independent tests.
    • To upgrade to a floating license, in the checkout page's Floating License dropdown, selected 2-9 or 10+ (unlimited) controllers.
    • Moving licenses and re-allocating VUs between machines requires internet connectivity to communicate with StresStimulus's licensing server and an active support plan.
  • Upgrade support (optional)

    The following support upgrades are available in the checkout page:

    • Perpetual licenses include one month of Standard Support. Upgrade to 12 months of support with optional auto-renewal is available.
    • All other licenses include Standard Support for the duration of the license.
    • Upgrade to Premium Support is available for all Enterprise and SP licenses. To check the upgrade price, click here and select the license you wish to upgrade.
    • License holders with unexpired support get new version upgrades for free. Major versions are issued 3-4 times per year on average.

For more information check licensing FAQs.