The Healthy Battery is an free and open source app for android. This is designed to show information from Battery and the app usage of the battery.
This app doesn't collect any user/device information from the user. This app runs on offline mode. This app was updated last January 24, 2017 version 1.2 and has 100+ download from playstore.
My suggestion about this app.
The app doesn't have a function of power saving mode.
suggestion
The app should have power saving mode, where the user can freely set power saving mode into mid and max to save battery.
reason
In order to extend the battery life span on the phone.
The app doesn't have an app monitor.
suggestion
The app should contain app monitor in order to monitor/kill the running background app to save battery.
reason
To extend the battery life and manually kill the running background apps.
The app doesn't have an function of estimated battery life.
suggestion
The app should have a function where the user can see the battery life in term of hours and minutes.
reason
To make the app informative and interesting to use.
This contribution well help the app more informative and usefull for the user.
Your contributor,
Posted on Utopian.io - Rewarding Open Source Contributors