ERG for iOS vs CAD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ERG for iOS
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.
- Indexed list of dangerous goods
- ID number lookup
- General hazard information
- Recommended safety precautions
- Multi-language support (English, French, Spanish)
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PHMSA’s Emergency Response Guidebook (ERG) is the go-to resource for first responders during the initial phase of a dangerous goods or hazardous materials transportation incident. The ERG app is a valuable companion, based on the latest edition of the ERG, to help responders quickly access critical information at their fingertips. The app features an indexed list of dangerous goods, including their associated ID number, general hazards, and recommended safety precautions. In practical scenarios, such as responding to an overturned tractor trailer displaying a DOT hazmat placard, emergency responders can use the app to quickly identify the material associated with the placard and get guidance on how to respond effectively. Full versions available in English, French, and Spanish.
CAD
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Monitor 24 hours of ambulance, emergency, fire and police events from Eugene, Oregon's Computer Aided Dispatch system. Filter events by distance, time and description.
Screenshots
Verdict
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 (#140 vs unranked) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ERG for iOS | CAD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (65 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 65 — better | — |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #140 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Pipeline and Hazardous Materials Safety Administration | Reproductive Pumpkin |
In-app purchases
ERG for iOS
No in-app purchases
CAD
No in-app purchases
