I would like to track the battery usage of all insatalled and system applications in iOS devices.
I hope it would look like this:
Is it possible to do this, if it is possible how to estimate the battery usage by all apps?
There is a app called Carat that might be overkill but it is way better than just watching the consumption.
It actually recommends what to do to save battery life.
One drawback is, it will not imminently show what needs to be done.
It will take >24 hours of monitoring your usage and then make recommendations on which apps to kill and how much battery life you get.
As of iOS 8, this is built-in.
Settings => General => Usage => Battery Usage.
The top section shows overall usage, the bottom section breaks it down by app. You can see last 24 hrs or last 7 days.