Watch a youtube review or read a review on it. If possible, test it out on a friends phone? In a perfect world Apple would allow a trial mode for apps which wo

Watch a youtube review or read a review on it. If possible, test it out on a friends phone? In a perfect world Apple would allow a trial mode for apps which would enable all features for X hours or X uses. But that's just Apple. It'll never happen. I heard though that MS does something like this for its apps? Or is it only for games?