Delta - Game Emulator

Delta - Game Emulator

An AltStore app

28K ratings
3306 reviews
#84 in free Entertainment
🎬 Entertainment
Free
In-App Purchases

Details

Released
April 17, 2024
Updated
October 22, 2026

Features

Delta - Game Emulator screenshot #1 for iPhone
Delta - Game Emulator screenshot #2 for iPhone
Delta - Game Emulator screenshot #3 for iPhone
Delta - Game Emulator screenshot #4 for iPhone
Delta - Game Emulator screenshot #5 for iPhone
Delta - Game Emulator screenshot #6 for iPhone
iphone
ipad
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About

This app allows you to play classic games from various retro consoles on your iOS or iPadOS device. It supports multiple systems, online multiplayer for some games, and extensive controller customization. You can also manage game saves, use cheats, and sync your data across devices.

✓Supports NES, SNES, N64, DS, GBA, and more
✓Online multiplayer for Nintendo DS games
✓Extensive controller support (Switch, PS, Xbox, MFi)
✓Save states with automatic backups
✓Cheat code support for various systems
✓Cross-device syncing via Google Drive/Dropbox
✓Customizable controller skins
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What users say about Delta

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What's New in Delta

2.0

October 22, 2026

iPhone Duo • Delta unfolds in all new ways to take full advantage of iPhone Duo • Optimized controller skins for every pose in both portrait and landscape • Supports Split View multitasking with other apps • Folding Duo puts DS games to sleep, just like closing the lid of a real DS Sega Genesis • Delta does what Nintendon’t! • Sega Genesis games are now playable in Delta • New controller skins for iPhone and iPad recreate the classic Genesis controller look • Built-in support for Action Replay and GameGenie cheats Liquid Glass UI • Fresh new UI designed from the ground up for Liquid Glass • Fully adapts to all screen sizes from Duo to iPad • System icons mark every page in your Game Library • Default artwork now has a light, glassy look RetroAchievements • Sign in with your RetroAchievements account to earn achievements in any supported game • Supports Hardcore mode, which disables loading save states and using cheats • Shows your achievement progress when you launch a game Recents & Favorites • New "Recently Played" and "Favorites" pages in Game Library • Quickly jump back in to your most recently played games • Add games to "Favorites" via long-press for easy access Animated Controller Skins • Controller skins come to life with support for fully animated buttons and controls • Supports 3rd-party skins, so skin creators can make their own • Try Delta’s new official animated GBA skin, designed by Caroline Moore Audio Settings • New audio settings to control how Delta handles other apps’ audio • "Mix with Other Audio" keeps music or podcasts playing alongside game audio • "Pause Other Audio" pauses everything else when a game starts Game Boy Color Palettes • Customize how your Game Boy games look with color palettes for original Game Boy games • Supports all the official color palettes from Game Boy Color Custom Fast Forward Speeds • Customize your experience with various Fast Forward speeds set per-game • Adjust your game’s default speed at any time from the Pause Menu or in Game Settings Adjustable Screen Position • Long-press to move your game screen wherever you like when playing with a controller • Easily move the screen above your favorite faceplate controllers DLC • Custom in-game experiences for classic Pokémon games • Unlock event items, receive rare Pokémon, and more • Supports all mainline GBA Pokémon games • First DLC coming soon! Redesigned Pause Menu • Fully redesigned & animated pause menu with Liquid Glass • Large, centered pause menu buttons make navigation simple • Dynamically adjusts pause menu layout to scale to all window sizes • Redesigned cheats screen with custom icons for additional customization Redesigned Settings • Reorganizes settings into more easily navigable hierarchy • Displays icons for all top-level settings • Redesigned controller input mapping screen for game controllers and keyboards • New Lil’ Settings and Advanced sections for additional customizations Custom Filters (Experimental Feature) • Experience your games just how you remember with new custom game filters • Set your filters per-system to change how games look across all your games • Choose from a set list of defaults (e.g. CRT) or import your own custom filters from the Files app Epilogue GB/SN Operator Support (Experimental Feature) • Use your GB/SN Operator devices with Delta, thanks to the Epilogue team • Connect game cartridges directly to your iPhone/iPad and play them natively • Reads and writes save files to cartridge • GB and SN operators support GBC/GBA and SNES games respectively • Blowing into cartridges optional Misc. • Added the ability to delete save states in bulk • Fixed issue causing audio crackling for SNES games • Fixed NES games occasionally opening to a black screen

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Subscriptions & In-App Purchases

Delta Patron

Early access to new features and exclusive app icons.

$5.001 Month
How to cancel Delta subscription ⁉️

Charts

Top Free

The app has maintained its position at 84 recently.

Last updated on November 3, 2026.

User reviews

Bad update

Not a fan of the new layout. At least give the option to choose the old one. Also why did you remove the auto cheat import? Also noticed a lot more crashes since the glass update

Unnecessary

I completely understand why you guys would want to revamp the ui. But at the cost of making it look more modern, it’s now just less easy to use. Especially for people who use codes for any purpose. The interface before was quick and accessible and some games came with pre installed codes like Pokemon heart gold and soul silver which have now been removed. For the people who had grown used to the old version can there please be a way to change back to how it was before. It feels flashy without taste I’m SORRY!!!
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Fantastic

This is honestly such a game changer of an app.
when I was younger, I really loved played the old Pokémon and Metroid games so much.

When I finally got a phone I had the good old GBA4IOS app installed, now unfortunately the app constantly got revoked after about 2-3 weeks for me so I’d lose all my progress from before.

And then I heard about the app Delta coming to the App Store and man I was so excited to get this thing going!

It functions very smooth and it has a ton of great features,
Definitely love being able to play those games again!
And I’m hoping this app will be here to stay for good :)
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Update: 1 star

Please fix this ugly UI and/or give us a choice. I hate this glass button UI as many of us do.

Audio pops

Pokémon emerald has staticy audio, and Final Fantasy 3 and Earthbound for SNES both have occasional little audio pops. Tried A GBC game and the screen gets a lot smaller when you hold it horizontally, with huge borders

Developer apps

User experience

🐞

Reported Bugs

4 issues

Certain games have graphical issues

Bug

DS game audio/video desync

Bug

Inconsistent save state behavior

Bug

Crashes when deleting/managing games

Bug
✨

Requested Features

7 requests

Add support for more consoles (GameCube, Wii, PS1, etc.)

Feature

Implement 3DS emulation

Feature

Allow custom button/control layouts

Feature

Add screen scaling and aspect ratio options

Feature

Implement local multiplayer for DS games

Feature

Improve AirPlay functionality

Feature

Integrate iCloud sync support

Feature

FAQ

What is Delta?

Delta is an all-in-one emulator application for iOS and iPadOS devices. It allows users to play games from a variety of classic game systems, including NES, SNES, Nintendo 64, Game Boy, Game Boy Advance, and Nintendo DS, among others.

What game systems does Delta support?

Delta supports a wide range of classic game systems. This includes the Nintendo Entertainment System (NES), Super Nintendo Entertainment System (SNES), Nintendo 64 (N64), Game Boy (Color), Game Boy Advance (GBA), and Nintendo DS (DS). The developers also indicate more systems are planned for future updates.

How much does Delta cost?

Delta is available for free. However, like many applications, it may offer in-app purchases for additional features or customization options, as indicated by its monetization model.

Can I play with friends using Delta?

Yes, Delta supports online multiplayer for Nintendo DS games that are compatible with online play. You can connect with friends around the world using community Nintendo WFC servers or by providing a custom DNS.

How do I manage my game progress and settings?

Delta offers robust save state functionality, allowing you to save and load your game progress from the pause menu. It also automatically backs up save states to prevent data loss. Additionally, Delta Sync enables you to sync your games, saves, save states, cheats, and controller configurations across multiple devices using Google Drive or Dropbox.