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
NCSS LLC offers flexible options for users at different stages of their research: Download Latest | PASS Sample Size Software | NCSS.com
The easiest way to get started is via the official PASS download page . 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.
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 Once the
Users have access to PhD statistician support for technical questions. How to Download and Install
You can download the latest installer for PASS 2026 (Current Version: 26.0.3). If you are a new user, you can
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.
Every procedure is validated against published books and reference articles to ensure accuracy.
Covers means, proportions, regression, survival analysis, and non-inferiority tests.