JuiceDefender Ultimate

★★★★★ Another 'have to' app on any phone I have, like my new Note II. Works great and I highly recommend it!

★★★★★ awesome - saves battery like a pro, highly recommend

★★★★★ Helps to make your battery life last longer by controlling the apps you have when you're not using your phone.

★★★★★ JuiceDefender works well, but I would like a little more battery savings than I currently am seeing. It is hard to tell, but it appears it does help conserve battery (JuiceDefender shows about 40%). I would definitely recommend trying this app since it will help save battery.

★★☆☆☆ Previously loved this app. Now it crashes on startup on my new Moto G5S Plus. Looks like it is no longer supported per the release date being very old.

★★☆☆☆ With moderate to heavy use I've gone from constantly charging the phone to once, maybe twice a day. A couple of glitches here and there but they're becoming more and more rare with the updates. Update - September 15, 2017. I've had a ZTE Axon 7 for 10 months now and it has yet to function for more than a few seconds without crashing. I realize this phone is fairly obscure but it's the best smartphone I've had to date all around. I've used this app on several phones since getting it in 2012 and my inability to use it with my Android 7.1.1 Axon 7 is saddening. My review rating will go back to 5 stars if/when Juice Defender's developers can figure this out.

★★☆☆☆ Is this ever going to get an update? Dead app, not updated for the last 6 years and it doesn't work on the last 3 iterations of Android. Used to be essential, even bought the unlock and donated, not even worth the space it thakes up on the hard drive.