Please email me directly at dave@dsrtech.net and I'll provide you a link to the .mp3 version of the file. The clicking seems to occur when the screen turns off and the device goes into power save mode. We have already fixed this issue for the update which will be released soon, but in the meantime you can use the .mp3 version of the file.
Dave Reinhart
I downloaded the Confidence app from i-tunes. It is full of clicks?