# CMC Field Guide vs Scott Sight

The clearest difference is update cadence: CMC Field Guide at every 3 months against Scott Sight's every 14 months. CMC Field Guide also leads on ratings volume (24 vs 2). Scott Sight's advantage is review sentiment (100% vs 77%) and iOS requirement (12.0 vs 15.1). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.0 for CMC Field Guide against 4.0 for Scott Sight. That said, the two scores are not equally well evidenced: CMC Field Guide has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 77% of CMC Field Guide's written reviews are positive against 100% of Scott Sight's.

CMC Field Guide ships an update every 3 months, Scott Sight every 14 months. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | CMC Field Guide | Scott Sight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (24 ratings)](https://appshunter.io/ios/app/cmc-field-guide/id426955029/reviews) | [4.0 (2 ratings)](https://appshunter.io/ios/app/scott-sight/id1174198103/reviews) |
| Number of ratings | **24** | 2 |
| Positive reviews | 77.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | Free | Free |
| Size | 36 MB | 119 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMC Rescue, Inc.](https://appshunter.io/developer/426955032) | [3M Company](https://appshunter.io/developer/396772465) |

## 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


### Scott Sight

[App page](https://appshunter.io/ios/app/scott-sight/id1174198103)

Configure your In Mask Display (IMD) with personalized settings. Save and share custom setups with multiple devices or via email. Tailor your display to your specific needs.

**Highlights:** Personalize In Mask Display (IMD) settings, Save multiple configurations, Share custom configurations to multiple IMDs, Share configurations via email

**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 Scott Sight free?

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

### Which has better reviews, CMC Field Guide or Scott Sight?

CMC Field Guide and Scott Sight are both rated 4.0 out of 5 on the App Store, from 24 and 2 ratings respectively.

### Do CMC Field Guide or Scott Sight have ads?

Neither CMC Field Guide nor Scott Sight shows ads.

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

CMC Field Guide ships an update every 3 months, and Scott Sight every 14 months. Most recently, CMC Field Guide was updated on June 10, 2026 and Scott Sight on September 19, 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.*