Indigo Downloads & RevenueIndigo: Retro Game Emulator · App Store

Indigo plays Game Boy, Game Boy Color, and Game Boy Advance game files on your iPhone and iPad.

You bring the files. Indigo brings a carefully built emulator—and a game of its own, so there's something to play the moment you open it.

ACCURATE, NOT APPROXIMATE

Indigo is built for correctness first. Its timing is validated against standard hardware test suites and, where those tests run out, against measurements from a real Game Boy Advance—including cycle-level contention between the processor and display.

The result is an emulator designed to reproduce the behavior of the original hardware, including the quirks that some games depend on.

SAVE ANYWHERE, UNDO ANYTHING

• A save-state slot with its own screenshot, free—five more slots with Pro
• Autosave, so the app reopens exactly where you left off
• Rewind the last 30 seconds to undo a bad jump or a missed move (Pro)
• Fast-forward at 2×; Pro raises it to 4× and adds hold-to-run
• Multiple named battery saves per cartridge, each with its own states—so two people can play the same game without sharing a save

A save state you have already made always loads, with or without Pro.

PLAY TOGETHER

• Link cable multiplayer over your local network, with automatic discovery
• Online multiplayer with a room code, so a friend anywhere can join
• Phones can link with the browser version too

All of it is included. There is no multiplayer subscription.

MADE FOR THE HARDWARE YOU ACTUALLY HAVE

• Physical controllers and keyboards, with touch controls stepping aside automatically when one connects
• Multitouch on-screen controls you can slide between without lifting a thumb
• Screen filters: sharp, smooth, or an LCD grid inspired by the original display
• Screenshots saved straight to Photos, at native size or up to 6× with Pro
• Siri and Spotlight shortcuts, plus Home Screen quick actions, to jump into a game by name

A LIBRARY THAT SORTS ITSELF

Indigo reads the cartridge header instead of relying on the filename. Even a file named with a hash can appear under its real title with the correct cover art.

Search your library, or let Indigo keep your most recently played games close at hand.

THE DETAILS

• Force Game Boy Color games to run as original Game Boy hardware, or the reverse, on a per-game basis
• Per-game clock offsets for cartridges with a real-time clock
• Cheat codes in GameShark, Action Replay, CodeBreaker and Game Genie formats (Pro)
• Cartridge sensors—tilt, gyro, rumble and solar—for the carts that shipped with them (Pro)
• The Game Boy Printer, with pages saved to Files (Pro)
• Optional BIOS support if you have your own dump; a BIOS is not required

INDIGO PRO

The free app is a complete console. Every game runs at full speed, battery saves are never touched, and nothing about playing is held back.

Pro is one purchase—no subscription—for the enthusiast extras:

• Cheats: GameShark, Action Replay, CodeBreaker, Game Genie
• Rewind, up to 30 seconds back
• Six save-state slots per game i