Adobe have a software tool (can't remember the name) that lets you convert an Android app into an Apple app and vicy-vercy. So what's the big deal.
Never really understood these hardcore us/them arguments. Apple have the best end-user interface by far, and Linux has the most versatile server platform by far, whereas Microsoft seem to be lost in the plot someplace inbetween.
Learn to use and appreciate all three for what they are good at and you will be better off.