A free program for Android, by Treat App.

X Sender: File Transfer is a free, easy-to-use application that allows you to transfer files between devices.

You can select any file or folder and send it to another device with X Sender. It can be transferred to another device without the need for an Internet connection. Moreover, you can send files from one device to another without the need for any third-party software.

There are a number of ways to use this application. You can send photos, videos, music, apps, e-books, PDF documents, etc. You can also send multiple files at the same time. It is also possible to set the speed of the transfer.