Hi JDumoulin,
The floating license option we have is a perpetual license which can use forever. Even not paying the subsequent maintenance cost (for continue receive our update and support) the software will keep working on the version you purchased. It also allow you to share the license between your consultant and internal users.
For VP Desktop user the VP Online serve as the central project repository for your team. User using the 1GB free storage space will need to have at least one commit of project in every 30 days to keep it alive. Otherwise the online storage space could being wipe out due to no activity on it.
Regarding to the “watermark when browsing the diagrams” do you meaning the diagrams exported from VP Client? If yes then it is subject to the license of the VP software who use to export the image. VP Desktop Client with paid license (except academic license) will not generate watermarks.
BTW we also have the free Viewer App which allow user to browser the content of your project without require any license. You can find the Viewer App at https://www.visual-paradigm.com/download/viewer.jsp
Feel free to contact me for any questions.
Best regards,
Rain Wong