Altstore - A home for apps that push the boundaries on iOS
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Cydia - An alternative app store for jailbroken devices.
ioBroker - flexible and modular application for the IoT and Smarthome
iOS Haven - A listing of tweaked apps and games for iOS devices. Install directly from the browser.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation