Theine keeps your Mac awake just like caffeine does with you. It prevents your Mac from falling asleep, dimming your screen or starting the screensaver.
Turbo Boost Switcher allows you to enable and/or disable Turbo Boost on you MacBook Air, primarily as a way to increase battery life.
With Wimoweh you have better control over how your Mac sleeps. The app comes in handy when you’re waiting for a lengthy job to finish and want your Mac to sleep afterwards.