Clocker - Keep track of people in different time zones
Wren - Offset your carbon footprint by saving rainforests
World Clock iOS 8 Widget - Check the time, anytime. Just pull down Notification Center.
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
Dato - Better menu bar clock with calendar and time zones
Treepoints - Fight climate change and earn rewards