Includes full tolerancing, non-sequential ray tracing, and API/ZPL support for advanced programming.
These are owned outright. While they run the software forever, they require an active support agreement to access new releases or technical support.
Historically, many users preferred , which allow the software to run indefinitely. However, since being acquired by Ansys, the licensing landscape has shifted significantly. zemax opticstudio license fixed
These are leased for a set duration (typically 6 months to 3 years). Once the term ends, the software will no longer run until renewed.
A "fixed" or single-user license is designed for a single machine and cannot be shared across a network. Historically, many users preferred , which allow the
Managing your license now primarily happens through the or the Ansys Licensing Client Settings .
As of January 2025, online transfers for legacy softkey licenses are no longer available. Users must now follow offline transfer protocols for older license types. Once the term ends, the software will no
Navigating the Modern Landscape of Zemax OpticStudio Licensing
The highest tier, offering full CAD support, stray light analysis, and integration with the Ansys Customer Portal for multi-physics workflows. 4. Management and Troubleshooting
All Black USB licenses (numbers 22000–40999) are perpetual. Newer red or green USB keys and softkey licenses can be either perpetual or subscription. 2. Single-User Fixed Licenses