In previous versions of Android, when my phone battery was going down quickly I could open an app like OS Monitor, see what process is using a lot CPU (often it was Evernote or Maps.me), and then kill that process.
However, OS Monitor and similar apps aren't working with Android 7 anymore, I guess due to some change in the system.
So I'm wondering, is there a way that would allow me to see what's consuming CPU in the latest version of Android?