This Android application is completely free and open source, released under the GPL V3 license (See http://www.gnu.org/licenses). To install, search for binaural beats therapy in the market or click on this link directly from your phone: market://search?q=pname:com.ihunda.android.binauralbeat Documentation and more details in the WIKI: https://github.com/GiorgioRegni/Binaural-Beats/wiki Visit the forum to get help as well as participate in the app development: http://www.binaural-beats.ihunda.com/forum Giorgio @GiorgioRegni on twitter