I am using xender from last 3 years and I found it very very fast, useful and easy to use app. The best pt it is its speed which is just awesome. We can share movies, apps, songs, images and all through it and it will share your stuff with your partner in a few seconds only. I have used share it also but I found Xender is faster than that also. So if you still use BT for sharing, you must download this app and you will feel the speed yourself. ^* ^
