If you are searching for a battery saver app you are at right place DS is a small app which can make a huge difference it can save a huge amount of battery by just forcing to shift proccer frequency to deep sleep just try it once I am sure you will install this app on every single phone in your house just have a single try ds battery saver pro
download it from playstore or the link below & screen shots are also below
download it from playstore or the link below & screen shots are also below
