# ERG for iOS vs CAD

The clearest difference is update cadence: CAD at monthly against ERG for iOS's every 4 months. ERG for iOS's advantage is chart position (#117 vs unranked) and device support (3 vs 1). On price, 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.

ERG for iOS ships an update every 4 months, CAD monthly. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ERG for iOS | CAD |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | — |
| Best chart rank | **#117** | — |
| Size | 27 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) | [Reproductive Pumpkin](https://appshunter.io/developer/482502734) |

## What reviewers say

### ERG for iOS

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

**Currently charting:** #117 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


### CAD

[App page](https://appshunter.io/ios/app/cad-eugene-oregon/id6444840672)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ERG for iOS free?

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

### Is CAD free?

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

### Do ERG for iOS or CAD have ads?

Neither ERG for iOS nor CAD shows ads.

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

ERG for iOS ships an update every 4 months, and CAD monthly. Most recently, ERG for iOS was updated on October 21, 2026 and CAD on October 10, 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.*