एस्ट्रोसेज कुंडली एंड्रॉयड ऍप
It is primarily available on Steam . While it is not "free" in the traditional sense, you can find it on the Steam Store or check for discounts on sites like GG.deals .
If you are looking for software related to (like earbuds), there is a dedicated "TOZO Sound" app. Download: Found on the App Store for iPad and iPhone.
Provides extra features like EQ customization for supported TOZO devices. Community Perspectives