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Retrace

Don’t let your retro game turn into a guessing game.

With Retrace and your Operator device, there’s no need to wonder whether a game is worth its price tag. Check authenticity, live market prices and game info, all on your phone.

iOS · iPadOS · Android v1.2.1 What’s New

Retrace on an iPhone showing Castlevania: Aria of Sorrow, next to a GB Operator with the cartridge inserted

First line of defense, at your fingertips.

Retrace goes where you go: gaming conventions, stores, yard sales, grandma’s attic. Go digging for treasure and see if what you find is real gold or just looks like it.

Retrace result for The Legend of Zelda: Link's Awakening DX, official and read-only at 92% confidence
Game info
Your cartridge is identified instantly and Retrace displays the technical game data. Also works offline.
Market value
See live prices for your game, based on the US market.
Authenticity
Run the analysis suite and verify results.
  • Official Tests passed with flying colors.
  • Unofficial Tests failed, check PCB.
  • Unrecognized Not found in existing database.
  • Inconclusive Read failed, clean and retry.

Buying from someplace new? It’s good practice to check the board. How to spot a fake

Pick up where you left off.

Got your hands on a big box of games, or just want to check your entire collection in one go? Scan all the cartridges in a row, then look back at the History list when you’re done. It’s the same info displayed in short form, for quick reference.

Retrace history listing six scanned cartridges with their results and prices
GB Operator with Castlevania: Aria of Sorrow and SN Operator with Chrono Trigger

Don’t forget your Operator at home!

You’ll need to insert the cartridge into an Operator, and connect it to your phone so Retrace can interact with the game. Make sure it’s with you while retro game shopping, and if you don’t have one yet… what are you waiting for?

Get GB Operator Get SN Operator

System Requirements

iOS

OS
iOS 17 or later
Device
iPhone or iPad
Connection
USB-C
Requires
Epilogue Operator device

Android

OS
Android 7 or later
Device
USB-C enabled phone or tablet
Connection
USB-C
Requires
Epilogue Operator device

An Epilogue Operator device (GB/SN/64 etc.) is required for cartridge scanning. The Operator connects to your phone or tablet via USB-C.

Version History

Retrace is distributed through the App Store and Google Play. Updates are delivered automatically through your platform's store.

v1.2.1 latest Release notes →
v1.2.0 Release notes →
v1.1.0 Release notes →
v1.0.0 Release notes →
View full changelog
By downloading Retrace, you agree to the Retrace EULA and Privacy Policy.
Retrace is an informational tool only and is not a substitute for physical inspection. It does not guarantee the authenticity of any game. Users should always perform in-depth physical checks and inspect circuit boards against known reliable sources. Pricing data is provided for informational purposes only and may be limited.
App Store and the App Store logo are trademarks of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC. All game titles and trademarks are the property of their respective owners.