Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Twicca - Twicca is a Twitter client for Android that is simply awesome. Features: * Notification
ioBroker - flexible and modular application for the IoT and Smarthome
Tweedle App - Notion is nice but sometimes all you need is an app like Tweedle.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
HootSuite - Enhance your social media management with Hootsuite, the leading social media dashboard. Manage multiple networks and profiles and measure your campaign results.