Here's how you can download the Advanced Task Killer app free for Android devices.
1. Go to the Google Play page for the free app Advanced Task Killer.
2. Tap the Install button.
Here's a description of Advanced Task Killer:
"Advanced Task Killer is also known as ATK. It is a tool to kill applications running.
-One tap widget
-Customize item height
ATK is often used to kill app and clean memory. We do suggest people use ATK manually kill apps instead of auto killing app."