It's not exactly encouraging that the first author consults for Peak. The conflict of interest statement in the paper offers this deeply unpleasant comment: "B

It's not exactly encouraging that the first author consults for Peak. The conflict of interest statement in the paper offers this deeply unpleasant comment: "BS consults for Cambridge Cognition and Peak. We have technology-transferred the App to Cambridge Enterprise who intends to technology-transfer the App to the games company Peak so that it can become widely available for use on mobile devices. This has not occurred yet." In short: we put up a free demo, but now we're giving all our code to the for-profit company our lead author happens to consult for. Also, they haven't bothered to actually release it outside their branded iOs-only app.