I am using xender app from more than 3 years.
This is very fast app. Now I am sharing my review about this app.
Concept - Xender is use to send all kind of files like music, photos, videos, applications and many others.
There are many applications available for send files but Xender is my favourite application. In Xender less time require for share and recieve files.
Layout is very fine and we can easily use this app. Average transfer speed is around 3 mb per second in Xender.
Other features of Xender is it can run in background also.