openHAB might be a bit more popular than Arc App. We know about 1 link to it since March 2021 and only 1 link to Arc App. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I'm using http://bigpaua.com/arcapp on my iPhone, and even the GPX track it records in the background is good enough to do some mapping, for example when I'm hiking or biking. Source: over 2 years ago
You can start on a general home automation like openhab.org. Source: almost 2 years ago
Gyroscope - Gyroscope is a personalized dashboard for tracking your life.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Exist - Track everything in one place, understand your life.
ioBroker - flexible and modular application for the IoT and Smarthome
Swarm - Swarm lets you earn prizes and compete with friends based on the places you go.
Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.