After installation, you will need to enter your serial number. If you are a new user, you can start a free 30-day trial to receive a temporary license key via email. Free Trial vs. Paid Licenses
The easiest way to get started is via the official PASS download page .
Users have access to PhD statistician support for technical questions. How to Download and Install ncss pass download
Once the .exe file is downloaded, run it to start the installation wizard. If you are updating an existing installation, the installer will automatically detect and update your software without affecting personal files.
PASS (Power Analysis and Sample Size) is the leading tool for determining sample size, offering tools for over and confidence interval scenarios—more than double the capability of competing software. After installation, you will need to enter your
You can download the latest installer for PASS 2026 (Current Version: 26.0.3).
For researchers and biostatisticians, finding reliable sample size software is critical for the integrity of any study. If you are searching for options, you are likely looking for either the industry-standard PASS Sample Size Software or its companion, NCSS Statistical Software . Key Features of PASS 2026 Paid Licenses The easiest way to get started
Covers means, proportions, regression, survival analysis, and non-inferiority tests.