In order to purchase WUFI please contact the Fraunhofer Institute for Building Physics (IBP) directly: Wufi is available in their online shop.
Download Wufi Light
For non-commercial purposes Fraunhofer IBP offers WUFI light (with a reduced set of features and a limited lifetime of one year) for free download. In order to download it, please go to the Fraunhofer IBP’s online shop (free registration required).
Useful tools, datasets, manuals, examples and help files for WUFI are accessible from the downloads page in Fraunhofer IBP’s website.