http://www.raywenderlich.com/31166/25-ios-app-performance-tips-tricks
http://blog.venmo.com/hf2t3h4x98p5e13z82pl8j66ngcmry/performance-tuning-on-android
http://www.raywenderlich.com/31166/25-ios-app-performance-tips-tricks
http://blog.venmo.com/hf2t3h4x98p5e13z82pl8j66ngcmry/performance-tuning-on-android