# CMC Field Guide vs Rescuecode

The clearest difference is review sentiment: CMC Field Guide at 77% against Rescuecode's 34%. CMC Field Guide also leads on rating (4.0 vs 1.7) and ratings volume (24 vs 6). Rescuecode's advantage is iOS requirement (9.0 vs 15.1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CMC Field Guide holds the better App Store score, 4.0 against 1.7. Both are backed by a comparable volume of ratings — 24 and 6 respectively. Written reviews point the same way: 77% of CMC Field Guide's written reviews are positive against 34% of Rescuecode's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on June 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CMC Field Guide | Rescuecode |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (24 ratings)](https://appshunter.io/ios/app/cmc-field-guide/id426955029/reviews)** | [1.7 (6 ratings)](https://appshunter.io/ios/app/rescuecode/id964333859/reviews) |
| Number of ratings | **24** | 6 |
| Positive reviews | **77.0% of reviews** | 34.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 36 MB | 70 MB |
| Requires iOS | 15.1 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMC Rescue, Inc.](https://appshunter.io/developer/426955032) | [Desincar](https://appshunter.io/developer/964333858) |

## What reviewers say

### CMC Field Guide

[App page](https://appshunter.io/ios/app/cmc-field-guide/id426955029)

Access rope rescue and access diagrams, reference charts, and how-to information instantly in the field. This free app provides essential rescue references, allows for note-taking, and supports offline access to downloaded content.

**Highlights:** Rope rescue and access diagrams, Reference charts, How-to information, Bookmark and take notes, Offline access to downloads, Browse equipment and tutorials

**Features:** macOS Compatibility

**In-app purchases:** none


### Rescuecode

[App page](https://appshunter.io/ios/app/rescuecode/id964333859)

This application provides critical technical information for vehicle extrication in emergency situations. It allows first responders to quickly access details about rescue sheets and E.R.G. data to aid in freeing individuals from vehicles after accidents.

**Highlights:** Vehicle extrication information, Rescue sheet details, E.R.G. data access, Scanner functionality, Search engine, Scan history consultation, Favorites management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CMC Field Guide free?

CMC Field Guide is free to download, with no in-app purchases.

### Is Rescuecode free?

Rescuecode is free to download, with no in-app purchases.

### Which has better reviews, CMC Field Guide or Rescuecode?

CMC Field Guide is rated higher. CMC Field Guide averages 4.0 out of 5 from 24 ratings, while Rescuecode averages 1.7 from 6 ratings.

### Do CMC Field Guide or Rescuecode have ads?

Neither CMC Field Guide nor Rescuecode shows ads.

### Which is updated more often, CMC Field Guide or Rescuecode?

CMC Field Guide ships an update every 3 months, and Rescuecode every 3 months. Most recently, CMC Field Guide was updated on June 10, 2026 and Rescuecode on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*