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Click "Activate." The software will phone home to the MKLabs server.

He navigated to the StarUML Help Center to verify his options. He remembered he had purchased a license for an older machine months ago, but he wasn’t sure if it would still work.

StarUML’s license is a for a professional-grade tool that you will use daily for years. Compared to Enterprise Architect ($250+) or Lucidchart ($12/month), it is a bargain.

Understanding StarUML Licensing: A Guide for Users StarUML is a professional software modeling tool used globally for creating Unified Modeling Language (UML) diagrams. While originally an open-source project, current versions (StarUML 2 and above) operate under a commercial proprietary license model. 1. Licensing Model & Pricing