REEF3D is free software; you can distribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
The source code is available through GitHub
REEF3D 22.03:
DIVEMesh 22.03
Please make sure to use the newest DIVEMesh version along with the newest REEF3D version.