# ERG for iOS vs BackStoppers

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.

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.

## The numbers

| Metric | ERG for iOS | BackStoppers |
| --- | --- | --- |
| 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 | **Every 3 months** |
| Monetization | Free | — |
| Size | 27 MB | 54 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) | [The BackStoppers, Inc.](https://appshunter.io/developer/1691902561) |

## What reviewers say

### ERG for iOS

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

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


### BackStoppers

[App page](https://appshunter.io/ios/app/backstoppers/id6450118249)

**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 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*