It worked seamlessly with other apps like Audiomux , which eventually led to the unified successor, studiomux. Why "midimux.rar" Appears Today
The original Midimux has been officially retired and folded into studiomux 5.0 . Users with older hardware (running iOS 8 or 9) often seek these old archives to keep their vintage setups running.
Since the developers ( Zerodebug ) moved to a subscription or paid model for the newer versions, older standalone versions are often shared in .rar format on forums.
Modern versions are available on the App Store and support the latest versions of macOS and Windows.