Apparently a lot of android users that require an application to double the .apk file but such applications rather hard to find.
However pacedroid have the best solutions to overcome them. This is not too difficult, you just need to visit this link
: http://goo.gl/k6SJAS
and then change the language on the top page of the site into English,
Then read and follow the flow of the process to completion
Thank you for visiting this page, I hope you succeed
How to duplicate, cloning Apk