RetroArch is available as a free App Store app for iPhone and iPad. To play a game, install RetroArch, add a legally obtained game file, select the matching emulator core, and load the content. Some systems also need a BIOS file, while demanding cores may be limited because the App Store build does not enable JIT.
This guide uses the normal App Store setup, which is the best choice for most users. You do not need to sideload an IPA just to install RetroArch.
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What RetroArch does
RetroArch is a frontend and management framework, not one single emulator. It uses separate libretro cores to run games from different systems.
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- RetroArch: The menus, settings, controller configuration, saves, playlists, and launching interface.
- Core: The emulator or game engine module that runs a particular system.
- ROM or content: The game or software file loaded by a core.
- BIOS/system file: Firmware required by some cores or games.
- Playlist: A library list connecting content to a core.
- Save file: The game’s normal battery or RAM save.
- Save state: A snapshot created by RetroArch, separate from the game’s own save system.
The current App Store listing advertises support through various cores for systems including NES, SNES, Game Boy, Game Boy Advance, Nintendo 64, PlayStation, PSP, Sega platforms, arcade systems, DOS, and ScummVM. That list is not a guarantee that every game will run equally well on every iPhone or iPad.
#1 Best Overall
- Bluetooth Controller for iPhone & Android: Mocagen mobile gaming controller Compatible with all iPhone models (including 18/17 series) and Android devices. Pairing steps: 1. Turn on Bluetooth on your phone and go to the pairing screen. 2. Press and hold the Home button for 3 sec until LED4 flashes. 3. Find "XBOX Wireless Controller" on your phone and tap to pair. Quick reconnect: After first pairing, simply press the Home button once (with Bluetooth on) to reconnect
- Play Most Controller-Compatible Games: This iPhone game controller supports cloud gaming (e.g., Xb*x Game Pass, GeForce NOW), Xbox Remote Play, emulator games, and native mobile games (e.g., Apple Arcade). Enjoy effortless control and play Fortnite, Call of Duty, Roblox, Genshin Impact, and many more anytime, anywhere. Note: Controller only works with games that support controller input, and does not support PS Remote Play
- 5M-Cycle Lifespan & Zero Drift: MC1 mobile gaming controller features a Hall-effect joystick with a 5M cycle lifespan, 2.5x longer than standard carbon-film sticks. Its innovative electromagnetic induction technology ensures drift-free operation, enabling precise character control in intense games and significantly extending this phone game controller durability
- Ergonomic Grip Design: The handle is ergonomically shaped with a l*ser-engraved texture for anti-slip and enhanced grip, effectively reducing fatigue during long gaming sessions. The scientifically designed joystick and button layout ensures smooth operation. Whether for personal use or as a gift, it delivers a more comfortable and healthier gaming experience
- 7-Color RGB Light Ring & 600mAh Battery: The mobile game controller features a 7-color adjustable light ring on the joystick(ABXY button lights can be turned off, but their colors are not adjustable). The lighting is vibrant yet eye-friendly. The built-in 600mAh battery provides up to 6 hours of battery life in brightness mode — enough for a full day of gaming
What you need
- An iPhone running iOS 12 or later, or an iPad running iPadOS 12 or later. These are the requirements shown by the current United States App Store listing.
- Free storage for the approximately 683.2 MB app, game files, BIOS files, artwork, and saves.
- Legally obtained game files and, where required, BIOS files. RetroArch does not supply copyrighted games or system firmware. Use files you are legally entitled to use, subject to the law where you live.
- Internet access for the initial asset and metadata updates.
- An optional Bluetooth, wired, or MFi-compatible controller.
iOS 12 compatibility is only the minimum app requirement. Older devices may not deliver good performance with demanding cores or games.
Install RetroArch from the App Store
- Open the App Store.
- Search for RetroArch.
- Confirm that the developer is Libretro and that the listing is the official app.
- Tap Get and install it.
- Launch RetroArch once and wait for its interface and folders to initialize.
The official Libretro guide records worldwide App Store availability beginning May 15, 2024. Avoid random IPA files, unofficial “preloaded” devices, and ROM packs when the App Store version meets your needs.
Complete the first-run updates
Menu placement can vary. iPhone uses the GLUI interface, while iPad versions after RetroArch 1.19.1 use Ozone by default. Follow the menu names rather than relying on screenshots from another device or version.
Open Online Updater and run these updates where they are available:
- Update Core Info Files: Metadata describing cores and their supported content.
- Update Assets: Menus, icons, fonts, and other interface resources.
- Update Databases: Identification data used for scanning and playlists.
- Update Overlays: Touch-control layouts and related overlays.
- Update GLSL Shaders: Optional visual filters supported by relevant video drivers and cores.
Assets, overlays, and core information are useful during setup. Shaders are optional and are not required to launch a first game.
Add game files with the Files app
RetroArch can read content from directories inside its app sandbox.
Rank #2
- WIDE SCREEN COMPATIBILITY — PHONE TO TABLET: X5 Lite is a versatile phone controller that stretches up to 213mm to fit iPhone 15/16, most Android phones, iPad mini 6/7, and compatible Android tablets. Secure Type-C connection keeps gameplay stable and responsive.
- MOBILE, CLOUD & REMOTE GAMING: Play supported mobile games like Zenless Zone Zero, or stream console and PC games through Xbox Game Pass, Steam Link, Moonlight, and remote play. Enjoy physical controls wherever you play.
- HALL EFFECT STICKS — PRECISE CONTROL: GameSir Hall Effect sensing sticks deliver smooth 360° control for accurate aiming, movement, and camera adjustments. Built for fast-paced mobile games and streamed console or PC titles.
- LIGHTWEIGHT & ERGONOMIC — 135.4G: At just 135.4g, X5 Lite stays lightweight during extended gaming. Ergonomic, laser-engraved textured grips provide a secure, comfortable hold at home or on the go.
- CUSHIONED MEMBRANE CONTROLS — COMFORTABLE & QUIETER: Cushioned membrane buttons and triggers provide comfortable feedback for repeated inputs while keeping operation quieter. Ideal for extended sessions or gaming in shared spaces.
- Open the Files app.
- Tap Browse.
- Choose On My iPhone or On My iPad.
- Open the RetroArch folder.
- Create a folder such as
ROMs. You can also create system-specific folders, plusBIOSorSavesfolders for organization. - Copy or move your legally obtained content into the RetroArch folder or one of its subfolders.
The exact folder name is less important than the file being somewhere inside RetroArch’s sandbox. In RetroArch, choose Load Content and browse to the file.
If you use Load Content → Open…, iOS opens its system file chooser. Files selected through that chooser are copied to RetroArch’s downloads folder by default.
Other ways to transfer files
- iCloud Drive: In Files, locate the content, tap and hold it, choose Move or Copy, and place it inside the RetroArch folder. Keep large files downloaded locally if you need reliable offline access.
- AirDrop: Send the file to the iPhone or iPad, then choose RetroArch or Files when iOS asks how to open or save it. If it lands in Downloads, locate it from RetroArch’s file browser.
- Mac: Connect the device and use Finder’s device-management and file-sharing interface where RetroArch is shown. Not every iOS app exposes the same sharing controls.
- Windows: Install Apple’s current Apple Devices app for Windows 10 or later. Connect the device by USB, select it, click Files, select RetroArch if it appears, click Add File, and choose the content. Only apps supporting File Sharing appear in this section.
Choose the correct core
A ROM cannot run by itself. It needs a compatible core for its system and file format.
- From RetroArch’s main menu, select Load Core.
- Choose a core for the system your game belongs to.
- Select Load Content.
- Browse to and select the game file.
- When prompted, choose Current Core.
The available core list on iOS is not identical to desktop RetroArch. Apple’s code-signing rules mean cores cannot simply be added or updated at runtime in the same way as on Windows, macOS, or Android. The App Store build has a bundled, platform-specific core set. Do not copy random .dylib core files into the App Store sandbox; that is not a supported way to expand it.
If the expected core is missing, update the core information files, check the cores actually included in your iOS build, and try another compatible core. Some advanced cores may be unavailable or unsuitable without JIT.
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Load and exit your first game
For a first launch, use the manual Load Core → Load Content route. It is easier to diagnose than scanning an entire library.
Rank #3
- Officially licensed by Xbox. Bluetooth connection. Supports Xbox Cloud Gaming.
- Officially supported by Apple. Compatible with Apple and Android devices. Stretchable design fits most phones (100–170mm in length).
- Hall Effect Joysticks and Triggers - Upgraded. Robust and long-lasting. Offering higher precision and sensitivity.
- Tactile bumpers and D-pad, 2 Pro back paddle buttons, Xbox button, and wear-resistant metal joystick rings for more ways to play.
- Support 8BitDo Ultimate Software V2 on mobile.
After a successful launch, RetroArch can create history entries, favorites, or playlists. A playlist associates content with a core so you can select the game and use Run later.
To exit safely, open RetroArch’s Quick Menu and choose Close Content. Avoid force-quitting the app while a game is running, particularly after saving.
Configure touch controls
Touch overlays are fine for turn-based games, puzzle games, RPGs, and slower action. They are usually less comfortable for fighting games, precision platformers, racing games, and titles that require simultaneous shoulder buttons or analog-stick movement.
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- Adjust the overlay’s position, size, and opacity if your version exposes those controls.
- Hide or reduce the overlay when using a physical controller.
- Test the controls in-game before assuming the core or ROM is broken.
- Keep separate touch and physical-controller configurations if your interface offers that option.
Because GLUI and Ozone place controls differently, the exact overlay menu path can vary between iPhone, iPad, orientation, and RetroArch version.
Connect a Bluetooth or wired controller
- Put the controller into pairing mode.
- Open iOS or iPadOS Settings → Bluetooth.
- Select the controller.
- Return to RetroArch and test the buttons and sticks.
- If the layout is wrong, open RetroArch’s input settings and remap it.
Apple also provides supported-controller customization under Settings → General → Game Controller, with features varying by controller and app. Apple confirms compatibility for supported PlayStation, Xbox, and MFi controllers, and compatible wired controllers may work through the appropriate adapter.
Rank #4
- 【CONNECTION GUIDE】 ①Make sure the phone controller is NOT in charging before connected. ②Observe if the 4th LED on controller is flashing quickly (if flashing 1.2.3, it is incorrect), If not, press and hold the 'HOME' button to turn off the controller and then connect again: Open your bluetooth on mobile phone, then long press 'HOME' and the 4th light will flash quickly, then find corresponding Bluetooth name and connect.
- 【TIPS FOR IPHONE GAME CONTROLLER】 When the wireless phone controller encounters abnormal situations such as inability to connect/charge, joystick offset, you can try resetting it: poke the 'RESET' hole on the back of controller with a needle, and then restart the controller for iphone to solve most non quality problems
- 【TIPS FOR CLOUD GAMING CONTROLLER】 Please use this mobile game controller to play games on a high-speed and stable network. This is because cloud games have high network requirements and require a high-speed and low latency network environment to reduce latency caused by network congestion and enhance the gaming experience
- 【PLAY ANY CONTROLLER SUPPORTED APP GAMES】 The iphone game controller is designed to enjoy unstoppable gaming experience, work for iPhone/Android, support nearly all cloud gaming services including Xbox Game Pass, Steam Link, GeForce NOW, MFi Apple Arcade & hundreds of popular mobile games like Call of Duty, Roblox, etc. The phone controller perfects your mobile gaming experience beyond a console by making it happen anywhere, anytime, to anyone
- 【WIRELESS IPHONE GAME CONTROLLER WITH HALL JOYSTICK】 Only hold on 'HOME', you can connect controller for iphone with phone via Bluetooth. The Hall effect joystick provide ultra precise control, No drift, No deadzone! It helps you gain dominant position of games faster and the performance and game experience has been improved qualitatively
If pairing fails, update the device and controller firmware, forget the controller in Bluetooth settings, restart pairing mode, reduce nearby Bluetooth interference, and check that the controller is not connected to another device. First confirm that iOS recognizes it outside RetroArch; then remap it inside the app.
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Add BIOS files only when a core requires them
A BIOS is firmware from the original hardware. Some cores require it, some use it optionally, and others do not need one at all. Requirements are core-specific.
For example, the official BIOS documentation lists BIOS files as required by Beetle PSX HW and SwanStation, while mGBA and PCSX ReARMed list BIOS support as optional. Check the requirement for the exact core you selected.
- Obtain a BIOS dump from hardware you own, where legally permitted.
- Check the core’s required filename, capitalization, region, and checksum.
- In RetroArch, open Settings → Directory and identify the configured System/BIOS directory.
- Place the file in that directory, not merely beside the ROM, unless the core’s documentation says otherwise.
A similarly named BIOS is not necessarily interchangeable. A wrong region, spelling, or checksum can produce a BIOS error or a black screen.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Test normal saves and save states
Use the game’s own save mechanism whenever possible. Save states are convenient snapshots, but they should not be your only copy of progress.
Test both types before building a large library:
- Launch a small game.
- Make a normal in-game save.
- Open the Quick Menu and choose Close Content.
- Relaunch the game and confirm the normal save remains.
- Create a save state, exit, and reload that state.
- Back up important saves before deleting or reinstalling RetroArch.
Save states can depend on the core, content filename, location, and settings. Changing cores or renaming files can make an existing state appear to have disappeared.
Best Value
- FULL SIZED CONTROLLER FORM FACTOR — Console performance meets mobile convenience for iPhone* and Android; play for extended periods in complete comfort and control with larger ergonomic handles that feel more natural to hold than standard mobile controllers (*iPhone 15 series and up)
- FULL SIZED TMR THUMBSTICKS — Perfect your aim with high-precision, anti-drift thumbsticks that are superior to Hall Effect designs
- DUAL MOUSE CLICK BACK BUTTONS — Enjoy the same ultra-responsive actuation found in our top gaming mice with 2 back buttons built into the controller’s ergonomic handles
- UNPARALLELED CASE COMPATIBILITY — Fits many popular phone cases thanks to an innovative USB C ‘island’ design and thicker depth clearance than other controllers
- POWERED BY THE RAZER NEXUS GAME LAUNCHER — Launch games, customize controls, record and share gameplay, and keep the controller updated with a free* app that can be brought up at the touch of a dedicated button. (*Razer Nexus does not require a fee/subscription, however some apps within Razer Nexus do)
Deleting an app can delete its sandboxed files. Apple notes that shared app files are also affected by device backup and app deletion workflows, so copy important ROMs and saves to a computer or another independent location first.
Optional: configure Cloud Sync
RetroArch documents three Cloud Sync backends: WebDAV, iCloud, and iCloud Drive. iCloud uses Apple’s CloudKit database, while iCloud Drive uses file storage; they are distinct options.
- Open Settings → Saving → Cloud Sync.
- Enable Cloud Sync.
- Choose a backend.
- Enable save files, save states, and any other categories you want synchronized.
- Save the configuration.
- Restart RetroArch.
Configure matching directory-sorting settings on other devices. The documentation says synchronization runs at startup, when cores are unloaded, and when RetroArch resumes from the background on iOS.
Cloud Sync is synchronization, not a guaranteed independent backup. Make a manual backup first, especially before combining libraries or enabling synchronization on multiple devices. Conflicting or inconsistent directory settings can prevent saves from merging correctly.
App Store version versus sideloading
The App Store build is the right default for most people: installation is simple, there is no signing or certificate management, and no periodic sideload refresh is required.
Sideloading or self-building is for advanced users who need a specific unavailable core, development build, or JIT-related capability. It requires a computer and an Apple signing process, and may introduce provisioning, refresh, or stability problems. Libretro documents Xcode, App Signer, and AltStore-style approaches, while noting that RetroArch is not affiliated with AltStore or iOS App Signer.
JIT is not enabled in the App Store version. Some cores may perform poorly, may be restricted, or may not function as intended without it. This is particularly relevant when experimenting with demanding systems; it does not mean every core or game requires sideloading.
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Troubleshooting
| Symptom | Likely cause | Fix |
|---|---|---|
| ROM does not appear | The file is outside the RetroArch folder, in Downloads, or uses an unsupported format. | Use Load Content → Open…, browse to the actual file, confirm its extension, and move it into the RetroArch sandbox if needed. |
| No cores available | The desired core is not bundled in the App Store build, or core metadata is outdated. | Update Core Info Files, inspect the available iOS cores, and do not install random core binaries manually. |
| Failed to load core | The core is unavailable, incompatible, mismatched, or dependent on capabilities not provided by the App Store build. | Update RetroArch, try another compatible core, and check whether the system needs a sideloaded/JIT-enabled build. |
| BIOS error | Wrong filename, region, capitalization, checksum, or directory. | Check the exact core documentation and place the verified BIOS in the directory shown under Settings → Directory. |
| Black screen or crash | Wrong core, missing BIOS, damaged content, unsupported format, graphics setting, or JIT limitation. | Try the recommended available core, verify the BIOS, test another legally obtained dump, disable enhancements, and restart RetroArch. |
| Game runs too fast or audio is wrong | A video, audio, threaded-video, shader, or core setting conflict. | Disable shaders and enhancements, restore core defaults, and test again before changing multiple settings at once. |
| Controller connects but buttons are wrong | The controller profile or layout does not match the core. | Confirm iOS detects it, remap it in RetroArch, save the profile if offered, and check core-specific controls. |
| Saves are missing | The ROM was renamed or moved, the core changed, the app was deleted, or Cloud Sync directories differ. | Restore the original filename and location, use the original core, check the save directory, and restore from a manual backup. |
| Only a sideloaded build works | The core or feature may require JIT or is absent from the App Store build. | Use the App Store build for supported systems; sideload only if you understand signing, maintenance, and security trade-offs. |
Final setup checklist
- RetroArch installed from the App Store and confirmed as developed by Libretro.
- RetroArch launched once and its folder located in Files.
- Core information files and useful assets updated.
- Legally obtained content copied into the RetroArch sandbox.
- Correct core selected before loading the game.
- BIOS supplied in the configured system directory if that core requires one.
- Touch overlay or physical controller tested and mapped.
- Game’s normal save tested.
- Save state tested separately.
- Important files backed up before app deletion or Cloud Sync changes.
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