iOS Emulation Apps Available After Apple App Store Policy Change
iPhone users can now legally download emulators for retro game consoles on Apple's App Store.
Apple spent more than a decade keeping retro game emulators off the iPhone, and then, on April 5, 2024, it stopped. The rule that did the blocking was a longstanding clause banning apps that run external code, a line broad enough to make console emulators structurally unapprovable no matter how well they were built. Anyone who wanted to play an old Game Boy or SNES library on an iPhone had two real options for ten-plus years: jailbreak the device, voiding warranties and courting instability, or sideload through workarounds that most casual players never bothered to learn. Pressure built from several directions at once, including years of user frustration and legislative scrutiny in Europe, where the EU's Digital Markets Act forced Apple to allow third-party app stores on the continent. Apple responded by rewriting guideline 4.7 to add one sentence: "Additionally, retro game console emulator apps can offer to download games." Four months later, in August 2024, Apple extended the same logic to PC emulators, opening the door wider than retro consoles alone.
What the new rules actually permit, and where the lines still sit
Apple's guidance confirms that emulators capable of loading ROM files are allowed, provided they emulate "retro console games," but Apple never published a list defining which consoles count as retro. That gap raises a genuine grey zone, visible in which emulator apps clear App Store review smoothly and which ones stall. Judging by what has actually reached the App Store, the comfortable range includes Nintendo's handhelds and home consoles up through the 3DS generation, Sony's PSP, and multi-system apps covering Sega and Atari hardware. The PC emulator expansion in August 2024 added a second tier of permission: UTM SE, an emulator for running PC operating systems, was already let into the App Store that July, ahead of the formal rule change, which suggests Apple was willing to move faster in practice than its written guidelines admitted. One limit has not moved. iOS still does not allow just-in-time compilation at the operating-system level for third-party apps, unlike Android, which has supported JIT in its ART runtime since version 7.0 without the same restriction. JIT compilation speeds up the translation of console code into instructions an iPhone's processor can run, so its absence on iOS is a big part of why some more demanding systems run unevenly, or not at all, on an iPhone, no matter how good the emulator app is.
The ROM Question: Legality and Liability
Every reader considering any of these apps needs one distinction settled before downloading anything. The emulator app is legal software, full stop, available on the App Store under Apple's own rules. The ROM file, the actual game data the emulator runs, is where copyright law gets involved. Nintendo's own support page states that uploading and downloading pirated copies of its games is illegal, and the company has backed that position with action: Nintendo sued the developers behind the Switch emulator Yuzu, a case that reportedly ended in a $2.4 million settlement. For an individual player, the practical line falls here: dumping a ROM from a cartridge someone physically owns is widely treated as acceptable personal backup, while downloading a ROM for a game never purchased is copyright infringement. Emulator developers themselves often sit a step removed from that risk. Delta's creator, Riley Testut, built an app that does not distribute ROMs at all, so any liability for infringing files rests with whoever hosts or supplies them online, not with the emulator. Players who want to stay entirely clear of any grey area can stick to homebrew games released into the public domain, which every emulator covered here can load and run without legal question. This is the full legal picture this guide needs to lay out, letting the rest of what follows focus on what each app actually does.
Delta: the emulator that became the No. 1 app on the App Store overnight
Delta, built by Riley Testut, is the most complete Nintendo-family emulator on the App Store, and its sudden rise to the top of the download charts after Apple's rule change was the clearest sign that the policy shift had real consumer demand behind it. One app covers NES, SNES, Game Boy, Game Boy Color, Game Boy Advance, Nintendo 64, Nintendo DS, and, in beta through Patreon, Sega Genesis, a range that spans four decades of Nintendo hardware plus a Sega system thrown in for good measure. Delta is free to download, and its optional Patreon tiers unlock alternate app icons, experimental features, and early access, which means the project runs on community support rather than leaning on App Store revenue the way a paid app would. The feature list reads like what a dedicated fan would build for themselves: cloud save syncing, fast-forward, cheat code support, custom controller skins, and Bluetooth controller compatibility with MFi, PS4, PS5, Xbox Series, and Switch controllers, all auto-configured per system without asking the player to map a single button by hand. Delta's one real legal skirmish had nothing to do with Nintendo. Adobe threatened action over Delta's triangular app icon, arguing it resembled Adobe's own stylized "A" mark closely enough to cause confusion, and the Delta team redesigned the icon. It is a small, almost funny footnote for an app that spent years dodging much bigger legal questions only to get a cease-and-desist letter over a logo.
PPSSPP: the only dedicated PSP emulator on the App Store
PPSSPP supports both OpenGL ES and Metal rendering, and on an iPhone running an M-series chip, the Metal backend pushes PSP games to near-native frame rates even in demanding titles, which is a notable technical feat given how much more graphically ambitious PSP games were than anything on the older Nintendo handhelds Delta covers. The app is free to install, with an optional Gold in-app purchase that supports continued development. Neither version carries ads, so the purchase is closer to a tip jar than a paywall. Part of why PSP emulation draws a dedicated crowd is that a chunk of its best library, titles like God of War: Chains of Olympus and Crisis Core, has no current legal re-release path on modern consoles or storefronts. Players who want to revisit those specific games are, in a very real sense, locked out unless they turn to emulation, which makes PPSSPP less a convenience and more the only route back into that corner of gaming history.
Folium: the only path to 3DS games on iPhone
Delta's lineup stops at the Nintendo DS, and the question of what happens to the 3DS generation gets answered by Folium, the first emulator on the App Store to support Nintendo 3DS games. Folium also covers Game Boy Advance and Nintendo DS, which overlaps with what Delta already offers, but its 3DS support is the reason it exists as a separate recommendation. The community on r/EmulationOniOS treats it as the standard pick for Nintendo handheld emulation on iPhone, and with no comparable alternative currently on the App Store, that recommendation holds by default as much as by merit. Folium costs $3.99, a one-time purchase. The developer has already shipped support for PlayStation 1 and Sega Genesis inside the app, while PlayStation 2 support is listed as in development. Treat the already-shipped console support as live today; treat the in-development console support as plans only, not yet a reason to buy the app if that specific console is the draw.
RetroArch: the most system-spanning option, with a steeper learning curve
Where Delta and Folium each specialize in a handful of Nintendo systems, RetroArch takes the opposite approach and tries to cover nearly everything at once. Its core library spans more than 200 systems, including NES, SNES, Game Boy Advance, Nintendo 64, PlayStation, Nintendo DS, Sega Genesis, and a long list of Atari hardware, with each system downloaded separately as its own "core. RetroArch is free and open-source, and it runs across Windows, macOS, Linux, Android, and iOS, making it close to a universal emulation front end. It also supports multiplayer online play, a customizable interface, and a wide range of shader and filter options for players who want their old games to look closer to how they remember them, or deliberately rougher, depending on taste. Downloading and configuring individual cores, then learning RetroArch's interface, takes meaningfully longer than installing Delta or PPSSPP and tapping play within a minute. RetroArch rewards players who want one app for every system, or who need a console nothing else on this list covers, and it asks more patience from anyone who just wants a quick game of an old favorite on a lunch break.
Provenance and SameBoy: the cleaner picks for Sega, Atari, and Game Boy
Two more apps round out the catalogue for players whose systems of choice sit outside Delta's and RetroArch's sweet spots. Provenance covers NES, SNES, Game Boy, Game Boy Color, Game Boy Advance, Sega Genesis, Sega Master System, and several Atari platforms in a single app, with version 3.2.1 released in November 2025. It is free on the App Store, with an optional Provenance Plus tier for those who want to support it further. For Atari and Sega libraries specifically, Provenance is the cleaner recommendation over RetroArch, since it delivers that coverage without asking anyone to manage cores. SameBoy takes the opposite approach: instead of breadth, it focuses entirely on Game Boy, Game Boy Color, and Super Game Boy emulation, with no ads and no tracking. It supports save states, rumble (including for games that never originally shipped with a Rumble Pak), fast-forward, rewind, slow motion, and even Game Boy Camera emulation, a feature list that goes deeper into one small system than any multi-system app realistically can. SameBoy also works with MFi, PlayStation, Switch, and Xbox controllers. Readers skimming specifically for Sega, Atari, or pure Game Boy coverage can stop here.
DolphiniOS and the sideload reality for GameCube and Wii
GameCube and Wii emulation has not reached the official App Store under any of Apple's 2024 or 2024-era rule changes, retro or otherwise. A supported iOS port called DolphiniOS does exist for those systems, but it requires sideloading through AltStore. That is a different kind of commitment than tapping install on an App Store listing, and the setup process itself falls outside what this guide covers. For players chasing GameCube or Wii specifically, DolphiniOS is the destination to look into next, with the understanding that it lives a step outside the walled garden the rest of this guide operates inside.
Getting the most out of iOS emulation with a physical controller
Touch controls work well enough in a pinch, but they are a compromise anyone who grew up with a real D-pad will feel immediately, and the entire emulator ecosystem described above was built with physical controllers in mind. Delta's Bluetooth MFi controller support needs no extra setup: pairing follows the same flow as any other Bluetooth accessory on iOS, and button mappings fill in automatically for whichever system is loaded. That same openness runs across most of the apps in this guide. Delta, PPSSPP, RetroArch, SameBoy, and Provenance all support Xbox controllers, PlayStation's DualShock and DualSense pads, and MFi-certified controllers without requiring a single manual button assignment. Pairing a controller turns the iPhone from a touchscreen approximation of a console into something closer to the real thing, and given how much work Apple's 2024 policy change put into making this entire catalogue possible, plugging in a controller is the cheapest way to make the most of it.
