Advanced Task Killer is also known as ATK. It is a tool to kill applications running. This version is pro version which doesnt contain ads. ATK is often used to kill apps and clean memory. We do suggest people use ATK manually kill apps instead of auto killing apps. -Ignore List -One tap widget -Auto kill -Customize item height 1. How to use it (for new users to quick start)? It is pretty simple. Open this tool and take a look at the running applications list? Uncheck some apps you dont want to kill (such as Advanced Task Killer and some system apps) Tap the button Kill selected apps, it will kill all applications checked. 2. How to use it (for new users to do more)? If you dont want to kill any application, you can tap it on the running applications list. Then its checking box will turn to gray. 3. Why there are programs running that I havent used or even opened? Some applications will start up once you turn on your phone or be invoked by some events. 4. What is ignore list/ignore? Ignore list is for you to ignore some applications you dont want to kill. If you long press on the application listed on the main screen of ATK, the menu will pop up, then you can select Ignore, the application would be moved to ignore list. When you tap Kill selected apps, it wont be killed any more. 5. What is default action for long press? You can set your default action for long press and click on the settings. The system default action for long press is pop-menu. That means you when you long press on the application(displays on the running applications list), a pop-menu would shows up. For example, if you want to switch to the application after you long press on it, you can set the default action of long press to Switch to. 6. Why I lost my network connection after I tap kill selected apps? This is because some apps related with network connection are killed. Such as voicemail. You can ignore it instead of killing it. 7. Why my Home reloaded? This is because some apps related with Home are killed. Such as HTC Sense, Mail(if it is integrated with Home). You can ignore it instead of killing it. 8. Why I cannot receive notification of Email? This is because you killed Email. Instead of killing it, you need to ignore it. 9. What is Auto Kill? If you want to kill apps automatically you need to choose one of auto-kill level - Safe: Only kill the apps arent running but still consume memory. - Aggressive: Kill the apps running background and apps arent running. - Crazy: All apps except for apps you are using with. You should be able to see Auto Kill information shows on the title, like Auto-Kill: 12:20. That means auto kill will start at 12:20, you can also change the frequency to impact the auto kill start time. Note: For android 2.2 and later version, task manager cannot kill services and front apps, you have to force stop them. If you use task manager to kill them, services might restart, also notification wont be ereased from the top bar. So we dont suggest people use task manager kill them.