LibreCAD is free software!
There is no trial period or expiry date, you can use it immediately, unlimited.
And you are not obligated to pay for its use.
But we have charges to keep the project running, mainly the server for our various services.
Thus it is more than welcome when you donate to the project to keep it up and running.
Currently, for various reasons, we can't accept cash donations.
But don't worry, the expenses are backed for now.
Anyhow, you can support LibreCAD by contributing to the community according to needs and possibilities.
Find our resources in the links above and don't hesitate to ask questions or share your experiences with our worldwide community.