Delta is an all-in-one emulator for iOS and iPadOS. Delta builds upon the strengths of its predecessor, GBA4iOS, while expanding to include support for more game systems such as NES, SNES, N64, and DS.
FEATURES
Supported Game Systems
• Nintendo Entertainment System
• Super Nintendo Entertainment System
• Nintendo 64
• Game Boy (Color)
• Game Boy Advance
• Nintendo DS
• And plenty more to come!
Online Multiplayer
• Play online-compatible Nintendo DS games with friends around the world!
• Connect via community Nintendo WFC servers
• Choose one of the default servers, or provide a custom DNS
Controller Support
• Nintendo Switch Pro controllers, Joy-Cons
• Nintendo Switch Online controllers (NES, SNES, N64)
• PS4, PS5
• Xbox One S, Xbox Series X
• MFi game controllers
• Bluetooth & wired keyboards
Save States
• Save and load save states for any game from the pause menu.
• Lock save states to prevent them from being accidentally overwritten.
• Automatically makes backup save states to ensure you never lose your progress.
• Support for “Quick Saves,” save states that can be quickly saved/loaded with a single button press (requires external controller).
Cheats
• Supports various types of cheat codes for each supported system:
• NES: Game Genie
• SNES: Game Genie, Pro Action Replay
• N64: GameShark
• GBC: Game Genie, GameShark
• GBA: Action Replay, Code Breaker, GameShark
• DS: Action Replay
Delta Sync
• Sync your games, game saves, save states, cheats, controller skins, and controller mappings between devices.
• View version histories of everything you sync and optionally restore them to earlier versions.
• Supports both Google Drive and Dropbox.
Custom Controller Skins
• Beautiful built-in controller skins for all systems.
• Import controller skins made by others, or even make your own to share with the world!
Hold Button
• Choose buttons for Delta to hold down on your behalf, freeing up your thumbs to press other buttons instead.
• Perfect for games that typically require one button be held down constantly (e.g. run button in Mario games, or the A button in Mario Kart).
Fast Forward
• Speed through slower parts of games by running the game much faster than normal.
• Easily enable or disable from the pause menu, or optionally with a mapped button on an external controller.
3D/Haptic Touch
• Use 3D or Haptic Touch to “peek” at games, save states, and cheat codes.
• App icon shortcuts allow quick access to your most recently played games, or optionally customize the shortcuts to always include certain games.
Game Artwork
• Automatically displays appropriate box art for imported games.
• Change a game’s artwork to anything you want, or select from the built-in game artwork database.
Misc.
• Gyroscope support (WarioWare: Twisted! only)
• Microphone support (DS only)
• Support for delta:// URL scheme to jump directly into a specific game.
Delta Terms of Use: https://altstore.io/terms
**Delta is in no way affiliated with Nintendo. The name "Nintendo" and all associated game console names are registered trademarks of Nintendo Co., Ltd.**
Delta is one of my favourite apps on both iPhone and iPad. The fact that everything runs straight from your device without needing a pc (unless you’re ripping your own game files) is awesome!! Every game I’ve tried runs perfectly on iPhone 15 pro and so easy to add new games from local files. At first I thought the touch controls would be annoying to use but that wasn’t the case at all and I’ve managed to finish several games using touch controls probably 90% of the time. Not needing an external controller means my train commute more entertaining, I can just open the app and not worry about carrying an extra controller around. This app has helped cut down my doomscrolling. The only thing I’d love to see in the future would be compatibility with 3DS games. Thanks devs for an awesome app!!
Touch screen D pad is a huge letdown
ZKRSIO
Everything is great about Delta except it basically requires external controllers unless you’re playing a turn based game or something that doesn’t require any precision in its D Pad inputs. This isn’t a touchscreen problem either, the zones for diagonals are simply larger than the orthogonal inputs. I’ve struggled to press single directions while actively looking at the D Pad and aiming for the middle of the buttons with the smallest surface area possible with my thumbs. This single-handedly holds it back from being an emulator I can use on a handheld device because the only way to play a lot of games would be to set my phone down on a flat surface and pick up a controller. I’ve tried everything and solely blamed myself at first but after a while it became clear that this was not the case, especially after playing equivalent mobile games that also have on-screen DPads and noticing the world of improvement in my inputs. I still make misinputs due to touchscreen’s nature but only at high speed.
THIS IS AMAZING!! (But one issue)
Ellie ✌️
This is honestly amazing! Like it’s amazing quality! Super easy to add all your fav games!! Like this is so good! And I’m so happy that you guys were able to release this to iOS,ect!! One downside which I would love if the developers could add is maybe like a blow button? Or to help disable the background noise / as for example in Legend of Zelda phantom hourglass (to proceed I need to blow out the candles to enter the dungeon but I’m unable to do that and no matter what I try it’s nearly impossible to try and get that effect which is so sad as it’s such a good game and I know this is similar to other games as well!) but it’s just an idea! (Great game/app def recommend still!!)
An emulator experience apple would be proud of
Youtube Pizzer
This emulator really embodies everything Apple stands for when it comes to design; convenience, intuitiveness, simplistic design and clean user interfaces. It’s simple and easy to configure out of the box, yet provides exactly all the customisability you could hope for. Truly masterfully executed and a serious win for the game preservation world. Only things that would be nice to have would be a master volume slider and some sort of 3D resolution increase options for the 3D consoles, but those are much lower priority quality-of-life features that don’t take away from how great this app is. Serious kudos to the developers responsible!
• Fixed keyboard support on iOS 26
• Fixed "Outdated Emulator" error when using RetroAchievements
Version 1.7.3s
The developer, Testut Tech, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Yvette Testut
Size
221 MB
Category
Entertainment
Compatibility
Requires iOS 14.0 or later.
iPhone Requires iOS 14.0 or later.
iPad Requires iPadOS 14.0 or later.
iPod touch Requires iOS 14.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
