Noizio is the minimalistic background sound equalizer for Mac OS X, that will increase your working productivity or ability to relax.

Software that stops your devices from keeping you awake at night. For Mac, Windows, Linux and iOS

Endurance is an app that helps your Mac run longer. Endurance runs in the background and when your battery level drops to a certain level, it automatically starts adjusting your settings and turning off features which use a lot of energy.