Downloading SPC PI+ Statistical Process Control 2.46.3 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
This software is an intellectual property of Qualitran Professional Services Inc. The most popular version among the program users is 2.4. The program's installer file is generally known as SPCPI.EXE. SPC PI+ Statistical Process Control is included in Education Tools.
From the developer:
Point & Click tool set that is simple to use yet packed with powerful features for analyzing data and plotting control charts with superb sensitivity and reduced false alarms. Features our unique chart Toolbar for chart functions.
Descriptive statistics: mean, range, standard deviation, variance, SEM, percentiles, Process Width (6s), etc
You may want to check out more software, such as Process Controller, Quincunx SPC Simulator DEMO or XLSTAT-SPC, which might be similar to SPC PI+ Statistical Process Control.