Yes, AZ has had very good success with Battery Doctor. I favor Green Power and find it takes care of everything I need it to. Bottom line, try both for a day or two each and see what works better for you. Both are free so you really don't have much to lose.
PsychDoc and I have done a lot of work with these apps.
They each have their own Good Features, and the one that is best for you, will be the one that lets you get the best service from your phone.
I am a Control Freak if you will, and I am retired from the busy hustle of everyday work life.
I do NOT want any instant notifications that someone has posted something on a forum or Facebook or other trivial event.
So, I stay with Battery Doctor and force every thing to OFF.
No DATA, no WiFi, no Sync, no Bluetooth... for me, the world can just hang on and wait until I get around to looking to see if it survived. Pun intended....
If you have a need for being "in touch" then you will need to leave DATA on, but that is not for me anymore. 45 years of being a slave in the telecommunications industry to heavy two-way radios, then pagers when they arrived on the scene, then cellphones when those arrived on the scene. I have seen it all, and don't want any part of it now.
I well remember the very first Motorola portable cellphone.
A big 10 pound heavy lunch box with a handle on top of it with a real live telephone handset "with a cord" you had to pull from the handle. Then a year later it was integrated into a car console. OMG, now we have Car Phones that connect to the horn and wake up the neighbors all hours of the night when I get a Call Out that a Microwave Station has gone down... nope, I am out.
but I digress, just wanted to put a funny touch on why different apps are "great for you" but not "for me".
there is no such thing as the "perfect app", we all need a slightly different approach to life.