I wasn't too clear
In response to the replies, yes I was a bit wrong. However this does help in certain occasions such as if one downloads an application and wants to back it up and/or share it with another person. In my case, I wanted to find a way to be able to share MP4 Youtube downloader with my friends as it had been removed from the market. But I am thankful for all the criticism as it is better to right than partiallly right. Sorry for misleading anyone.