So far I haven't noticed any battery life improvement but it does work like it's supposed to and hibernates apps. No negative effects on performance either on both my s4 and nexus 7
Sent from my Nexus 7 using Tapatalk 4 Beta
I used it for a while, maybe four weeks, and uninstalled it because it was annoying the crap out of me. I didn't like how it tried to managed my phone incorrectly. For example, I never use wi-fi. I am on LTE 100% of the time, and I like it that way. It kept turning my wifi back on when I got in range of a hotspot, even if I didn't want it to. I didn't see a difference, but I also realized I don't want an app trying to guess how I use my phone. lol
some system apps are stubborn and re-activate, but almost all the crap i hibernated stuck.
from what i have seen that EF can do, its just another way to do things that we already knew or had the means to do, with a few exceptions.
just thought you might want to know