Fast App Installer ,
Easy way to install external android application on your phone, search sdcard's specified folders and install any app you need.

Duplicate files searcher and remover, based on content, file name, or similarity

Xender is the best file transfer app for android phones. You can directly connected in order to transfer files, even without WIFI, 3G and SIM Card and it does not cost any mobile traffic. A movie in just 50 seconds. Support App, Photo, Movie any kind of file and format. "Connect PC" function lets you upload and download files from your phone or tablet over a wireless connection. Transfer files without a USB cable.