RPO Decoder

RPO Decoder

by Brian Pritiskutch

5 ratings
4 reviews

Archived App (Last seen on 26 Mar 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • February 6, 2021
  • February 16, 2021

Features

RPO Decoder screenshot #1 for iPhone
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RPO Decoder screenshot #7 for iPhone
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About

This app simplifies deciphering General Motors RPO codes. It combines over 24,000 codes from various sources into a single, searchable tool, allowing users to decode multiple codes at once and share results.

Deciphers GM RPO codes
Over 24,000 RPO codes
Search by code or description
Decode multiple codes at once
Share decoded results
Browse entire code list
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What's New in RPO Decoder

1.0.2

February 16, 2021

Added ability to save and manage decoded results Saved results are stored in the application

User reviews

Thank You!

Thank You for putting this together. It was very helpful, as I have done it the old fashioned way. I snapped a pic of my glove box tag and just bounded back and forth between apps to fill in the code spaces. It was pretty interesting just doing a few at a time and decoding them, and seeing what the actual build was. Thanks Again!
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Meh

Would be better if it didn’t delete half the **** I spent time putting in once I get to a certain point.

Very helpful

This app is awesome for figuring out square body Chevy rpo codes, just remember to tap on the result if it’s confusing as some codes were used for multiple options.

Not bad

I appreciate the effort put into this app, but entering RPO codes one-at-a-time is frustrating. I noticed a bug when scrolling down to enter more that somehow I cleared 3 full rows of codes. Suggest at minimum a large text field where users can copy/paste a full list of whitespace delimited codes, best feature upgrade would be to use iPhone’s OCR/“Vision” framework to automatically enter codes.
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Developer apps

FAQ

What is RPO Decoder?

RPO Decoder is a free reference app designed to help users understand Regular Production Option (RPO) codes found on General Motors vehicles. It provides a searchable database of over 24,000 codes.

What vehicles does RPO Decoder cover?

The app covers General Motors RPO codes from the mid-1970s to the earlier 2010s. It is specifically intended for use with GM RPO codes.

Can I decode multiple RPO codes at once with RPO Decoder?

Yes, RPO Decoder allows you to enter up to 80 individual RPO codes to be decoded simultaneously. You can then view and share the combined results.

How can I find a specific RPO code in RPO Decoder?

You can search the entire list of RPO codes by either the code itself or by its description. This makes it easy to locate specific options.

What is the rating for RPO Decoder?

RPO Decoder has a rating of 3.4 stars based on 5 user ratings. This indicates a generally positive but mixed user reception.

On which devices can I use RPO Decoder?

RPO Decoder is available for iPhone and iPod devices. It is not currently listed for Android or other platforms.

How often is RPO Decoder updated?

The app was last updated on February 16, 2021, to version 1.0.2. The initial release date was February 6, 2021.

Does RPO Decoder have ads?

No, RPO Decoder does not contain advertisements. It is a free app without any ad support.