ERG for iOS vs BackStoppers
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.
BackStoppers
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The BackStoppers mobile app allows supporters to learn about our mission, donate, find a fundraising event, receive notifications on announcements and more! The BackStoppers provides ongoing needed financial assistance and support to the spouses and dependent children of all police officers, firefighters and volunteer firefighters, and publicly-funded paramedics and EMTs in our coverage area who have lost their lives in the line of duty. In addition to our mission of supporting the families of fallen heroes, BackStoppers provides assistance to first responders who suffer a catastrophic injury performing their duty.
Screenshots
Verdict
The clearest difference is iOS requirement: ERG for iOS at 12.0 against BackStoppers's 16.0. On price, update cadence, 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, BackStoppers every 3 months. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.
| Parameter | ERG for iOS | BackStoppers |
|---|---|---|
| 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 | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 54 MB |
| Age rating | 12+ | 12+ |
| Developer | Pipeline and Hazardous Materials Safety Administration | The BackStoppers, Inc. |
In-app purchases
ERG for iOS
No in-app purchases
BackStoppers
No in-app purchases
Questions
Is ERG for iOS free?
Is BackStoppers free?
Do ERG for iOS or BackStoppers have ads?
Which is updated more often, ERG for iOS or BackStoppers?
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