Adobe XD Mirror is described as 'Eliminate the guesswork by previewing your Adobe XD designs, complete with transitions on native devices, in real time via USB or by loading them as cloud documents'. There are five alternatives to Adobe XD Mirror for a variety of platforms, including iPhone, iPad, Android, Android Tablet and Sketch. The best alternative is Lunacy, which is free. Other great apps like Adobe XD Mirror are Figma Mirror (Free), Design Mirror (Paid), Sketch Mirror (Free) and Framer Preview (Free).
Lunacy is a native Windows app that opens, edits, and stores .sketch files. In short, it’s long-awaited Sketch for Windows. It solves the big pain of design teams working on different operating systems and improves the process of transition from design to development.