The phrase refers to the desire to obtain the WinISD software, a popular tool for designing loudspeaker enclosures, specifically for use on Android mobile devices without incurring any cost. It encapsulates the search for a mobile application offering similar functionality to the desktop WinISD program, readily accessible and free of charge.
The significance lies in the potential for accessibility and convenience in speaker design. The ability to perform loudspeaker simulations and enclosure calculations on a portable device can enhance workflow and provide design capabilities in various locations. The historical context involves the widespread use of desktop WinISD and the increasing prevalence of mobile devices, creating a demand for mobile alternatives.