I've been using greenify for a long time.
i dont really know whether it is helping me save battery or causing me more trouble.
since opening a hibernated app has a tiny delay. not noticeable in most app, but very obvious for facebook.
opening a hibernated FB and you have to wait it load from scratch and stuck at the splash screen for 1-2 seconds.

below is battery info of 2 days. both approximate in standby for 7 hours. in the same spot on my table connected to the same wifi.

First one, with greenify.
almost all user apps&games and many unused system apps were greenify. only messaging apps like viber whatsapp hangouts, and google search were left untouched.


second one, with greenify uninstalled.
i left google+, chrome, and FB running in the background (open the app and press home button)
wakelock duration is almost twice compared with with greenify, FB being the biggest culprit


but strangely...the battery drain is the same, both left with 97%. , both case also lose 3% over a period of 7 hours.
greenify doesn't do much to help save battery.
and in the case of FB, it causes unnecessary delay for app opening.

do you still think it's worth using greenify?

Can greenify freezes chrome and google services. Those seems to be running in background all the time. Does this consume battery?

I only sleep 7 hours a day. That only enough to make it drop 3%.
U wan me to drain it in standby to 90% then I need to leave it idle 21 hours. Impossible la. I need to use my phone.

Google now won't work if u greenify search. So I leave it on.

Exactly, I know what Greenify does. I can only say that one of the reason why I sometimes prefer killing tasks completely is to free up RAM. I'm too used to the built in cleaner of the MIUI. Now that I've gone to AOSP, I have yet to give up this idea of killing the tasks completely to free up RAM.

But then again, I have yet to discover if an app goes into hibernation will it take up the RAM usage as well? 

Here are my findings.

Apps that are kept in ram do cause significant increase in wake lock
wake lock with greenify is 2%,
without greenify (5-14% depending on a number of background app kept)



Greenify works by significantly reduces wakelocks. But the results is not that jaw dropping. If u just clear your apps and go to sleep, the results will be the same. Greenify helps by auto force stop your background apps when it's not in use during idle. Just like iOS let unused app freeze and stop wasting resources.

Extra wake lock seems bad, and it does impact battery life, but the impact is very minimal. I done 3 observation.
A 2% wake lock causes 3% battery lost over a 6 hour 45 mins period
A 5% wake lock causes 3% battery lost over a 6 hour 45 mins period
A 14% wake lock causes 5% battery lost over a 6 hour 10 mins period.

I'm giving this issue a rest. Lost interest in further investigating.
In the mean time I'll continue using greenify to freeze fb. It's the highest wake lock contributor.

Are you Google now user?
Greenify Google search Google now reminder will still work?