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 (Ent) or Service Provider (SP).

    • Pro Edition is recommended for developers of Web applications simple to medium complexity.
    • Ent 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.
    • Ent / SP Editions support distributed and cloud testing with multiple test cases.


    Check 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 for Pro Edition or between 25 and 10,000+ in Enterprise and SP Edition.

    • Pro Edition licenses have a choice of 25, 50, 100 and 250 VUs.
    • Ent 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 license, annual license, monthly or quarterly subscriptions or a weekly pass.

    • Perpetual licenses never expire.
    • Annual licenses include one year of use. Auto-renewal is available.
    • Monthly and Quarterly subscriptions are auto-renewable, cancel future charges at any time.
    • Weekly passes include one week of use from the order date, not auto-renewable.
  • Upgrade to A Floating License (optional)

    • With a per-machine (or Flexible Node-Locked) 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 shopping cart's Floating License dropdown, selected 2-9 or 10+ (unlimited) controllers.
    • Moving licenses 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:

    • Perpetual licenses include one month Standard Support. Upgrade to 12 months of support with optional auto-renewal is available.
    • Annual licenses include 12-month Standard Support.
    • Subscriptions include Standard Support.
    • 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 free. Major versions are issued 3-4 times per year on average.

For more information check licensing FAQs.