iPhone 6 iPhone 6 Plus battery lifetime on iOS 8.1
http://www.scottyloveless.com/blog/2014/the-ultimate-guide-to-solving-ios-battery-drain
Step 3 is the easiest explanation I've found. You can also search for "iOS memory management" and call the developer website of Apple and read the hole thing.
iOS and OS X have really good memory management since years.
I am not a developer but I started to learn objective-c and you start to read these things.
http://www.scottyloveless.com/blog/2014/the-ultimate-guide-to-solving-ios-battery-drain
Step 3 is the easiest explanation I've found. You can also search for "iOS memory management" and call the developer website of Apple and read the hole thing.
iOS and OS X have really good memory management since years.
I am not a developer but I started to learn objective-c and you start to read these things.