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By using the free trial software, you agree to use it for evaluation purposes only. The NCSS trial software is not to be used for actual research, study planning, or otherwise, whether academic, commercial, government or education.

Your trial license key will be sent to this email.
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Free Trial

The NCSS 2024 free trial gives you an opportunity to evaluate the software before you purchase it. The trial version of NCSS 2024 is fully-functional for 30 days. Want to purchase a license? Click here.

When you click the download button with a valid email address, you can begin downloading the NCSS 2024 setup file.

You will receive an email with your trial license key that allows you to use the software for 30 days. If you choose to purchase the software, you can use the license key you receive to convert the trial version into the fully functional version. You will not need to reinstall NCSS 2024 after you purchase a license.

We’ll periodically send you emails with product information and tutorials to get you started. You can unsubscribe at any time. Your email address will never be sold or given to a 3rd party.

NCSS 2024 is compatible with Windows only. Click here for a complete list of system requirements.

A Windows emulator (such as Parallels) is required to use NCSS 2024 on a Mac. Click here for more information.

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Get help downloading the NCSS Free Trial by contacting us.

"PASS is a great program. It does so much and is easy to use. It’s much better than the other sample size programs I’ve used—it has helped me greatly in my research."

Ken Lawson, Ph.D., The University of Texas

"PASS 13 is fantastic! Better than my new dishwasher and microwave combined."

Dr. Barbara Tabachnick, CSUN, Author