# CMC Field Guide vs RigRite

The clearest difference is price: CMC Field Guide at Free against RigRite's $2.99. CMC Field Guide also leads on review sentiment (77% vs 33%) and rating (4.0 vs 1.2). RigRite's advantage is iOS requirement (12.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

CMC Field Guide is free to download; RigRite costs $2.99 up front. 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 1.2. 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 33% of RigRite's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on June 10, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | CMC Field Guide | RigRite |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.0 (24 ratings)](https://appshunter.io/ios/app/cmc-field-guide/id426955029/reviews)** | [1.2 (6 ratings)](https://appshunter.io/ios/app/rigrite/id874043123/reviews) |
| Number of ratings | **24** | 6 |
| Positive reviews | **77.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Paid |
| Size | 36 MB | 15 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMC Rescue, Inc.](https://appshunter.io/developer/426955032) | [P22 Limited](https://appshunter.io/developer/1508996238) |

## 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


### RigRite

[App page](https://appshunter.io/ios/app/rigrite/id874043123)

This app provides interactive vector force calculations for complex rope rigging systems. It allows users to visualize forces with multipoint anchors, redirects, and slopes, and even overlay diagrams onto photos of their setups. Supports various load units and offers saving and sharing capabilities.

**Highlights:** Interactive vector force calculations, Multipoint anchor support, Visual diagrams with drag-and-drop, Photo overlay for angle measurement, Supports diverse load units, Save, copy, and share diagrams

**Features:** macOS Compatibility, Vision Pro support

**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 RigRite free?

RigRite costs $2.99, with no in-app purchases.

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

CMC Field Guide is rated higher. CMC Field Guide averages 4.0 out of 5 from 24 ratings, while RigRite averages 1.2 from 6 ratings.

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

Neither CMC Field Guide nor RigRite shows ads.

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

CMC Field Guide ships an update every 3 months, and RigRite every 3 months. Most recently, CMC Field Guide was updated on June 10, 2026 and RigRite on September 26, 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.*