After trying out many different binaural apps, I would rank this one as one of the best binaural beat apps. But, if I can suggest one improvement, it would have to be with how you access your own library of music to use within the app.
At the moment, you can select your own music, but only one song at a time. When the app description stated that you can now play your own music within the app, I had the impression you could play a full album of songs - not just one. If you can add a feature to enable you to play a full album during the entrainment programs, it would be so much better.
Also, the search function would be exponentially better is you could browse your library the same way you can with the iPhones native player. At the moment, if you are browsing your library by Artist, once you click to select Artist you have all of the songs from all of their albums jumbled together in alphabetical order. It would be so much better if after you select the Artist, you are the taken to another screen to select by Album, followed by another screen to select Songs on that album. Although there is the option to start a search by Album name first, if you have a ton of music in your library and many different albums by different artists, it is quite the challenge to navigate through a ton of album names and guess whether the song(s) you are looking for are the ones by the artist you are looking for. For instance, if you want to play one artists album referenced under the name Greatest Hits, if you have more than one Greatest Hits albums in your music library, you are left to guess which Greatest Hits album belongs to the Artist you are looking for.
With those changes, this app would earn a five-star rating from me.
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