OpendTect software is divided into two main components: an open-source section that is available for free and a closed-source section that is commercially licensed through FlexNet. The open-source aspect, known as OpendTect, serves as a seismic interpretation system that accommodates both 2D and 3D seismic data while facilitating the rapid development of new interpretation tools. Users can enhance OpendTect's capabilities by utilizing various free plugins. On the other hand, the closed-source component, referred to as OpendTect Pro, offers a more advanced version with additional features geared towards professional users. Furthermore, OpendTect Pro allows for the integration of commercial plugins, which can provide specialized seismic interpretation workflows not available in the free version. This combination of open-source flexibility and commercial enhancements makes OpendTect a versatile choice for geoscientists and industry professionals alike.