๐Ÿ“ฐPress Kit

To contact us for media inquiries, you can email press@altstore.io


Delta is an all-in-one video game emulator for non-jailbroken iOS devices. With Delta you can relive the experience of playing several iconic Nintendo consoles, including SNES, Nintendo 64, Nintendo DS and more! Delta is the spiritual successor to GBA4iOS โ€” a Game Boy Advance emulator I made while in high school โ€” rebuilt from the ground up with modern iOS features and support for more systems.

Mastodon: https://indieapps.space/@delta

GitHub: https://github.com/rileytestut/Delta

Supported Systems

  • Nintendo Entertainment System (NES)

  • Super Nintendo Entertainment System (SNES)

  • Nintendo 64 (N64)

  • Game Boy / Game Boy Color (GBC)

  • Game Boy Advance (GBA)

  • Nintendo DS (DS)


Beautiful, Native UI

  • Browse and play your favorite games with a UI designed from the ground up for iOS.

  • Automatically displays appropriate box art for imported games.

  • Change a gameโ€™s artwork to anything you want, or select from the built-in game artwork database.

Controller Support

  • Supports PS4, PS5, Xbox One S, Xbox Series X, and MFi game controllers.

  • Supports bluetooth (and wired) keyboards, as well as the Apple Smart Keyboard.

  • Completely customize button mappings on a per-system, per-controller basis.

  • Map buttons to special โ€œQuick Saveโ€, โ€œQuick Load,โ€ and โ€œFast Forwardโ€ actions.

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!

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 โ€œQuick Saves,โ€ save states that can be quickly saved/loaded with a single button press (requires external controller).

Fast Forwarding

  • 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.

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.

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 (ex: run button in Mario games, or the A button in Mario Kart).

3D/Haptic Touch

  • Use 3D or Haptic Touch to โ€œpeekโ€ 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.


App Icons

Framed Screenshots


Promo Images

Last updated