oandbackup - Make backups of selected apps on your device and restore from those backups.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Super Backup & Restore - Super Backup & Restore app allows users to backup all their stuff such as pictures, videos, apps, text messages, contacts, call history, and calendar data, etc.
ioBroker - flexible and modular application for the IoT and Smarthome
SyncDroid - SyncDroid is basically and iOS and Android smartphone manager that lets the users of both smartphones to transfer their mobile content from one smartphone to another within few simple steps.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation