How to Force Stop multiple apps at once? My HTC One X+ with Android 4.2.2 suffers a lag pretty often and I don't like that.
Sometimes I cannot even unlock the phone because screen doesn't come up.

I noticed that when I force stops all other apps (besides the one I am using) when phone lags, it runs smooth.
I have lot of apps installed so going to Apps then selecting the app and then force closing it takes a lot of time.

I am looking for a way where I can force stop multiple apps at once.
Greenify is also an app that can help you in this problem. It is one of the best task killer and battery saver app that I tried.

Greenify's link on Google Play