Android > Tools > Security/Performance

SanDisk Memory Zone
Manage your phone memory and back up your files to a SanDisk® Drive or microSD.
FortiClient
Forticlient is a real time network security option that can be downloaded as an app on your mobile device
Comodo Backup
Backup contacts and sms! You will never lose your data. The best free backup.
Wondershare MobileGo
Android Cleaner & Optimizer - Clean junk files, boost & speed up device manager