Comparison

ERG for iOS vs BackStoppers

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Indexed list of dangerous goods
  • ID number lookup
  • General hazard information
  • Recommended safety precautions
  • Multi-language support (English, French, Spanish)
Features
Read full description

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.

About

BackStoppers

Features
Read full description

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

ERG for iOS4 screens
BackStoppers3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
ERG for iOS versus BackStoppers: the parameters behind the verdict, then further details
ParameterERG for iOSBackStoppers
PriceFreeFree
Rating4.8 (65 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings65 — better—
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size27 MB54 MB
Age rating12+12+
DeveloperPipeline and Hazardous Materials Safety AdministrationThe BackStoppers, Inc.

In-app purchases

None

ERG for iOS

No in-app purchases

None

BackStoppers

No in-app purchases

Questions

Is ERG for iOS free?
ERG for iOS is free to download, with no in-app purchases.
Is BackStoppers free?
BackStoppers is free to download, with no in-app purchases.
Do ERG for iOS or BackStoppers have ads?
Neither ERG for iOS nor BackStoppers shows ads.
Which is updated more often, ERG for iOS or BackStoppers?
ERG for iOS ships an update every 4 months, and BackStoppers every 3 months. Most recently, ERG for iOS was updated on October 25, 2026 and BackStoppers on October 19, 2026.

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