# ERG for iOS vs Hazmat Guide

The clearest difference is in-app purchases: ERG for iOS at none against Hazmat Guide's 1. ERG for iOS also leads on chart position (#158 vs unranked) and iOS requirement (12.0 vs 26.0). Hazmat Guide's advantage is update cadence (every 2 months vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Hazmat Guide sells 1 one-off in-app purchase. ERG for iOS asks for nothing beyond the download.

ERG for iOS ships an update every 4 months, Hazmat Guide every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ERG for iOS | Hazmat Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (65 ratings)](https://appshunter.io/ios/app/erg-for-ios/id1597142669/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Best chart rank | **#158** | — |
| Size | 27 MB | 116 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) | [Luis Miguel Zuluaga Gonzalez](https://appshunter.io/developer/1811717311) |

## What reviewers say

### ERG for iOS

[App page](https://appshunter.io/ios/app/erg-for-ios/id1597142669)

**Currently charting:** #158 Top Free · Reference (US App Store)

This app provides first responders with quick access to critical information for hazardous materials transportation incidents. It features an indexed list of dangerous goods, including ID numbers, hazards, and safety precautions, aiding in effective response.

**Highlights:** Indexed list of dangerous goods, ID number lookup, General hazard information, Recommended safety precautions, Multi-language support (English, French, Spanish)

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

**In-app purchases:** none


### Hazmat Guide

[App page](https://appshunter.io/ios/app/hazmat-guide/id6768384736)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donar 1 café | $0.99 | one-time |


## Frequently asked questions

### Is ERG for iOS free?

ERG for iOS is free to download, with no in-app purchases.

### Is Hazmat Guide free?

Hazmat Guide is free to download, with in-app purchases available.

### Do ERG for iOS or Hazmat Guide have ads?

Neither ERG for iOS nor Hazmat Guide shows ads.

### Which is updated more often, ERG for iOS or Hazmat Guide?

ERG for iOS ships an update every 4 months, and Hazmat Guide every 2 months. Most recently, ERG for iOS was updated on October 25, 2026 and Hazmat Guide on October 24, 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.*