You'll frequently find the emulator you want isn't available, or the one you downloaded last week doesn't work anymore. The problem is that these emulators stop working all the time, especially if you're always running the latest version of iOS. All you need to do is find the emulator you want on one of these alternative App Stores, download it, then tell your iPhone to trust that app's developer. We can't control if you choose to do this, but know that MakeUseOf does not condone this practice.Ĭountless websites make it quick, free, and easy to download emulators for your iPhone or iPad. You can then download them on your iPhone to open with your emulator of choice. All it takes is a quick Google search to find whatever ROMs you're looking for. That said, plenty of people do it anyway. No matter what, it's a crime to share a ROM with anyone else. However, Nintendo has previously stated that using ROMs of its games for any reason is against the law. If you already own a game, in some cases, you can make a ROM version of it for personal use. While emulators are open source, making them free and legal to use, ROMs are a little more complicated. You can use the same ROM with multiple emulators, as long as the original game worked with the console you're emulating. A ROM is the software version of a video game. You also need a ROM for the game you want to play. If you want to play a Nintendo DS game on your iPhone, for example, you need to install a Nintendo DS emulator. An emulator is a piece of software that mimics a computer system, like an old video games console.

Source code for delta emulator