I bought the app in Amazon App Store on 11 January 2014. The app worked in winter sports very well, everything could be controlled at the GoPro. When I launched the app today, seemed an indication that is out of date version of Amazon and the program is terminated. One looks in vain for a new version of Amazon. Thus, the app has become unusable, which I very much regret, because I did really like taken. 3.25 costs the app what eigtentlich a good price for all that, what this app offers. So I can only advise you, do not buy this app in the Amazon App Store that were then paid 3.25 for free.