# Decoder for US Navy — Figure Out Some Navy Info

> US Navy personnel and code reference guide for quick lookups. (iPhone/iPad app by Crash Test Dummy Limited, LLC.)

- Source: https://appshunter.io/ios/app/decoder-for-us-navy/id588227679 (this page in markdown: same URL + `.md`)
- Developer: [Crash Test Dummy Limited, LLC](https://appshunter.io/developer/588227682)
- Category: Reference
- Price: Free (on sale, was $1.99)
- Rating: 4.80/5 from 174 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 68 MB
- Languages: American English
- Released: 2013-04-24
- Data updated: 2026-08-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/decoder-for-us-navy/id588227679/reviews.md

## What is Decoder for US Navy?

This application is not officially endorsed or sponsored by the US Navy.

This app is a quick reference guide to many US Navy personnel and other codes.  Instead of spending the time to find the correct reference and look up the information, this app will allow one to quickly get to the answer.

The main focus currently is on personnel related codes that will be found in manning documents such as RUADs and AMDs.

Current items decoded:
- Additional Qualification Designations
- Enlisted Rating Codes
- IMS Codes
- MAS Codes
- Officer Billet Codes
- Officer Designators
- Officer Paygrade Codes
- Navy Reserve Activity Codes
- NOBC Codes
- RBSC Billet Codes
- Reserve Program Codes
- Reserve Unit Identification Codes
- RFAS Codes
- Subspecialty Codes
- NECs

See how you can support this open source project: https://github.com/ctd-mh3/NavyDecoder-OpenSource-iOS

## Key features

- Personnel code reference
- Quick lookup tool
- Manning document decoding
- Additional Qualification Designations
- Enlisted Rating Codes
- Officer Billet Codes
- NECs

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/decoder-for-us-navy/id588227679/reviews.md

### 2/5 — MAS/IMS/UIC not all there

*2020-09-23*

Looks like there’s a lot of codes and UICs that are not available. It’ll be nice if this app can translate Noble Eagle codes as well.

-Navy Chief

**Developer response:** Codes are updated when changes are noticed.  If you have specific concerns, please contact the developer.  Thanks

### 5/5 — The BEST Decoder EVER!!!!

*2020-06-20*

What is a MAS Code? What IMS code TS1 mean? The Navy decoder explains everything, the BEST tool ever!!! If you are ever work in Manpower and need to know what Manpower code TS1, the Navy Decoder app is easily accessible and right at your fingertip!!! Highly recommend this app, simply the BEST TOOL EVER!!!!

### 5/5 — Helpful, and now an old friend!

*2020-05-06*

The decoder app has become like an old friend with a never-ending supply of “phone-a-friend cards”!
It is my go-to in so many meetings when questions arise and people are in awe of the depth of RUAD and manning code knowledge it contains.

### 3/5 — Doesn’t include all RFAS code options

*2019-03-20*

The ap is helpful as I work in manning and manpower and use it frequently. Only 3 stars because often the RFAS code that I’m trying to look up doesn’t exist on the ap. If you’re going to have searchable RFAS codes, make sure all the options are there. Otherwise it’s kind of useless and really frustrating.

**Developer response:** Let the developer know when the app is not giving you the answers you need.  RESFOR does not make any big announcements of when they change the codes, so it is certainly helpful for users to let the developer know when they see a possible issue.

### 5/5 — Excellent resource!

*2019-02-06*

As a manpower officer in the reserves, I find this extremely helpful. Not only does it list all the various codes, but the developers are very responsive to requests for updates when codes change. For example, when TNPQ changed to MS3. They updated that within several days of becoming aware of it.

### 2/5 — Missing RUIC

*2017-01-13*

There's a bunch of missing RUIC now, like mines. Didn't this app also have their location as well?  It lost its handiness along with stars.

**Developer response:** HenBry,  sorry to hear this.  The list of RUICs is from a RESFOR spreadsheet which should be listing all RUICs.  Email the developer your RUIC so that I can look into this.  
I had not listed the location of the units in the past.  Looking forward to hearing back from you (via email support@crashtestdummylimited.com).

### 5/5 — Awesome app

*2016-08-06*

You need this app if you do anything to do with admin!  Real time saver.

### 5/5 — Finger tip information

*2015-01-27*

Very useful for all Navy code needs. Your admin offices can easily use this as a reference source.

## Frequently asked questions about Decoder for US Navy

### What does the Decoder for US Navy app do?

This application acts as a quick reference guide for various US Navy personnel and other codes. It is designed to help users quickly find information that would otherwise require extensive searching through reference materials, particularly for manning documents.

### What types of codes can this app decode?

The app decodes a wide range of codes including Additional Qualification Designations (AQDs), Enlisted Rating Codes, IMS Codes, MAS Codes, Officer Billet Codes, Officer Designators, Officer Paygrade Codes, Navy Reserve Activity Codes, NOBC Codes, RBSC Billet Codes, Reserve Program Codes, Reserve Unit Identification Codes, RFAS Codes, Subspecialty Codes, and NECs.

### Is this app officially endorsed by the US Navy?

No, this application is not officially endorsed or sponsored by the US Navy. It is an independent project created to provide a convenient reference tool for Navy personnel.

### Is there a cost to use the Decoder for US Navy app?

Based on the provided information, the app is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free user experience.

### Who would benefit most from using this app?

This app is primarily for US Navy personnel who frequently encounter and need to understand various codes and designations within manning documents like RUADs and AMDs. It helps streamline the process of looking up this information.

## Version history (last 5 releases)

### 1.47 — 2026-08-15

Fixed RFAS code for "ET" Authorized Rating Substitution

### 1.46 — 2026-08-02

Updated per JUL 2026 NAVPERS data changes (e.g., NECs, AQDs, NOBCs, SSPs, Officer Billet/Designator Codes).

### 1.45 — 2026-07-05

Minor user interface improvements
- Better handling of larger text size (iOS Accessibility settings)

### 1.44 — 2026-05-02

Fixed display overlap issue for smaller phones when user searches all categories.
Updated enlisted rating codes, AQDs, SSPs, and NECs.

### 1.43 — 2026-04-05

Updated NOBCs, Officer Billets, Officer Designators, and SSPs.

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All apps by Crash Test Dummy Limited, LLC: https://appshunter.io/developer/588227682

## Related topics

[decoder for us navy](https://appshunter.io/ios/topics/decoder-for-us-navy) · [rbsc](https://appshunter.io/ios/topics/rbsc) · [navy bmr](https://appshunter.io/ios/topics/navy-bmr)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*