By making an informed decision, you can ensure a secure, stable, and productive CAD experience with QCAD Professional or alternative software solutions.

In the installed trial version, look for the "Trial" widget and click "Remove" . This permanently removes the professional add-ons, leaving you with a fully legal, unlimited free 2D CAD program. 3. Explore Free Open-Source Alternatives

The professional version allows for 15-minute sessions at a time.