uniqush/uniqush-push

Uniqush (\ˈyü-nə-ku̇sh\ "uni" pronounced as in "unified", and "qush" pronounced as in "cushion") is a free and open source software system which provides a unified push service for server side notification to apps on mobile devices. The uniqush-push API abstracts the APIs of the various push services used to send push notifications to those devices. By running uniqush-push on the server side, you can send push notifications to any supported mobile platform.