# Ryerson Emissions Illuminator vs Fastener Dimensions

The clearest difference is price: Ryerson Emissions Illuminator at Free against Fastener Dimensions's $4.99. Ryerson Emissions Illuminator also leads on rating (5.0 vs 2.3) and update cadence (every 2 days vs every 6 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Ryerson Emissions Illuminator is free to download; Fastener Dimensions costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ryerson Emissions Illuminator holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Ryerson Emissions Illuminator ships an update every 2 days, Fastener Dimensions every 6 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Ryerson Emissions Illuminator | Fastener Dimensions |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ryerson-emissions-illuminator/id1618040044/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/fastener-dimensions/id6476143105/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 months |
| Monetization | **Free** | Paid |
| Size | 59 MB | 62 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph T. Ryerson & Son, Inc.](https://appshunter.io/developer/577585260) | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) |

## What reviewers say

### Ryerson Emissions Illuminator

[App page](https://appshunter.io/ios/app/ryerson-emissions-illuminator/id1618040044)

Assess the environmental impact of your metal supply chain. Compare your current emissions against industry benchmarks and explore alternative options to reduce your carbon footprint. This tool offers a deeper analysis than standard emissions calculators.

**Highlights:** Evaluate metal supply chain emissions, Compare against industry averages, Explore alternative supply chains, Analyze emissions impact, Metal supply chain insights

**Features:** macOS Compatibility

**In-app purchases:** none


### Fastener Dimensions

[App page](https://appshunter.io/ios/app/fastener-dimensions/id6476143105)

This app provides a comprehensive guide to various types of fasteners, including bolts, nuts, pins, and washers. Explore diverse options and dimensions to meet specific project requirements and enhance your understanding of these essential components.

**Highlights:** Dimensions of bolts, nuts, pins, and washers, Variety of bolt types (e.g., countersunk, hex head flange), Range of nut types (e.g., hex, wing), Intricacies of pin types (e.g., clevis, cylindrical, tapered), Choices of washer types (e.g., plain, spring), Guide for project requirements

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

**In-app purchases:** none


## Frequently asked questions

### Is Ryerson Emissions Illuminator free?

Ryerson Emissions Illuminator is free to download, with no in-app purchases.

### Is Fastener Dimensions free?

Fastener Dimensions costs $4.99, with no in-app purchases.

### Which has better reviews, Ryerson Emissions Illuminator or Fastener Dimensions?

Ryerson Emissions Illuminator is rated higher. Ryerson Emissions Illuminator averages 5.0 out of 5 from 4 ratings, while Fastener Dimensions averages 2.3 from 3 ratings.

### Do Ryerson Emissions Illuminator or Fastener Dimensions have ads?

Neither Ryerson Emissions Illuminator nor Fastener Dimensions shows ads.

### Which is updated more often, Ryerson Emissions Illuminator or Fastener Dimensions?

Ryerson Emissions Illuminator ships an update every 2 days, and Fastener Dimensions every 6 months. Most recently, Ryerson Emissions Illuminator was updated on November 3, 2026 and Fastener Dimensions on November 4, 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.*