With the RetroArch app for iPhone and iPad, you can now play your favorite legacy games on the go — but it takes some work and configuration. Here's how to do it. RetroArch is an open-source, ad-free ...

Apple says games offered by these emulators must adhere to “all applicable laws” to prevent things like piracy, so it’s hardly a free-for-all. And despite the obvious restrictions, it’s easy to see ...