The license of the CCLib library (containing the core algorithms) is LGPL version 2.0.
Therefore CCLib can be integrated in any commercial or non-commercial project. You just have to share any modification of the code with the authors (us).
The license of the other components is GPL (version 2.0):
- qCC_db (database library)
- qCC_io (file I/O library)
- qCC_gl (OpenGL based 3D display library)
- CloudCompare and ccViewer (standalone applications)
Therefore only GPL-compatible (which means open-source but doesn't necessarily means free) projects can use those components.