Software Licenses

Purchasing a license for IRTPRO™ is easy. You can purchase and download a basic non-commercial, academic, and educational copy of IRTPRO™ from within My Account. Annual licenses are available for single users, one seat for $245 per year. If you would like to link multiple user accounts under one license, please contact us for more information. Please note that no technical support is provided with the basic version.

This LISREL 9 Subscription license is offered as part of SSI's Legacy Software Support Program. It offers equivalent functionality as your current LISREL 9 Perpetual licensed program and comes with 1 user license and 1 install. As a commitment to support our customers in a rapidly changing IT environment, the LISREL legacy software support program is only available as a complimentary benefit that SSI currently offers to customers who hold perpetual and active rental LISREL 9 licenses. Inactive LISREL 9 rental licenses are not eligible for this benefit. If you would like to add additional installs to a single license or link multiple user accounts under one license, please contact us for more information.

Purchasing a license for LISREL is easy. You can purchase and download a standard non-commercial, academic, and educational copy of LISREL from within My Account. Annual licenses are available for single users (two installs) for $370 per year. Additional users can be added to your annual license for only $370 per user (each comes with two installs). If you would like to add additional installs to a single license or link multiple user accounts under one license, please contact us for more information.

Purchasing a license for SuperMix is easy. You can purchase and download a standard non-commercial, academic, and educational copy of SuperMix from within My Account. Annual licenses are available for single users (two installs) for $370 per year. Additional users can be added to your annual license for only $370 per user (each comes with two installs). If you would like to add additional installs to a single license or link multiple user accounts under one license, please contact us for more information.

Purchasing a license for HLM is easy. You can purchase and download a basic non-commercial, academic, and educational copy of HLM from within My Account. Annual licenses are available for single users, one seat for $245 per year. If you would like to link multiple user accounts under one license, please contact us for more information. Please note that no technical support is provided with the basic version.

Registered users have access to a single installation, two-week free trial. The trial version is a fully functional flexMIRT® software package. The free trial is offered to provide users with an opportunity to evaluate the program prior to purchase. Please note, the free versions of the software are for EVALUATION PURPOSES ONLY and come with no warranties and only limited technical support. Free trials are not to be used for commercial or operational purposes without the express written consent of Vector Psychometric Group, LLC.