When you updated your app? I will give you 5 stars.
It used to be great Ever since Marshmallow Estar has been useless as it stops recording shortly after starting the service. I've tried removing it from Marshmallow's optimization for battery but that doesn't help. And the so called "help" for the app is nothing more than self-promotion for how wonderful the app is, but lacking any real explanation about anything. But before Marshmallow it really was *the* go to app for analyzing battery usage, but sadly not anymore.
Used to be good Not sure what happened, but the app doesn't seem to be recording energy use. Locks up too often lately as well. Will try again with next update.
Best app to extend battery life Love the app!
Absolutely wonderful in keeping my Nexus 7 tab apps in line. Thanks.
Better UI experience.
Energy-aware App Recommendation: Recommends alternative, more energy-efficient apps than the power-hungry apps currently running on your phone.
Expose the background usage of your apps
Cool Battery Saver is a battery saving app, and a really cool app!