Device Storage Analyser displays information on sdcard, usb devices, sd-cards, external and internal storage in a simple and clear graphical form (infographics). ITS FREE, NO ADS, NO VIRUSES.

Quick App Installer
install external android apps on your mobile, you can search any folder by typing the folder location or just place your apk files in your scard root folder and easily install them on your phone

Measures time spent on each app. See which apps to uninstall because you're not using them!
The most accurate app usage tracker! Accurate to less than a second on Android 1.6 and up.