Advanced Task Killer - This tool is also known as ATK. It is a tool to kill applications running.
oandbackup - Make backups of selected apps on your device and restore from those backups.
tuPoz - Click-and-Kill. Kill & delete rogue processes in a single click.
Super Backup & Restore - Super Backup & Restore app allows users to backup all their stuff such as pictures, videos, apps, text messages, contacts, call history, and calendar data, etc.
Restart Me - ReStartMe is designed to do one thing, and that is to restart processes.
Tenorshare WhatsApp Transfer - Transfer/Backup/Restore WhatsApp on iPhone/Android with One Click