Hard to argue with the price
As of this writing the app is free, and its most basic functionality works between iPhone and Vision Pro, so there isn’t much to complain about. The images are stretched regardless of what orientation the iPhone is in, so it’s kind of disorienting to look at (takes me back to Windows 95 wallpaper days). It’s not something you’re going to want to use seriously, but could be handy in a pinch.