This app logs when the screen of your mobile device is on.
It shows a graphical overview of this data.
It allows to define maximal usage time, after which a warning notification is shown.
9Apps 4.9
![Get an Up-to-the-Minute Data Meter in Your Android's Status Bar [How-To] screenshot 1](https://i.ytimg.com/vi/-UsAz3x57mQ/mqdefault.jpg)
