Unified Remote - Unified Remote is a software app available for iPhone, Android, and Windows Phone mobile operating systems. It's designed to turn your smartphone into a universal remote. Read more about Unified Remote.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Remote Mouse - Turn your smartphone into a wireless touchpad and keyboard now!
ioBroker - flexible and modular application for the IoT and Smarthome
EventGhost - EventGhost is an advanced, easy to use and extensible automation tool for MS Windows.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation