FFTW-ARM is distributed under the terms of the GNU General Public License as published by the Free Software Foundation; either Version 2 of the License, or (at your option) any later version.

Under the GPL, FFTW-ARM is distributed without any warranty, not even the implied warranty of merchantability or fitness for a particular purpose.

See the FSF GPL FAQ for more details and a thorough discussion of your rights and obligations under the GPL.

The mainline version of FFTW is in the process of adding support for NEON (starting with 3.3.1-beta1). If you require a license other than the GPL, we suggest you contact MIT. Licensing information and prices are available from the MIT Technology Licensing Office.