# SKC SmartWave vs ERG for iOS

The clearest difference is review sentiment: ERG for iOS at 100% against SKC SmartWave's 0%. ERG for iOS also leads on ratings volume (65 vs 1) and update cadence (every 4 months vs every 18 months). SKC SmartWave's advantage is rating (5.0 vs 4.8) and iOS requirement (10.3 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SKC SmartWave holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ERG for iOS has 65 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of SKC SmartWave's written reviews are positive against 100% of ERG for iOS's, so the app with the better star average is not the one people write more warmly about.

SKC SmartWave ships an update every 18 months, ERG for iOS every 4 months. The most recent releases landed on September 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SKC SmartWave | ERG for iOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skc-smartwave/id1453417531/reviews)** | [4.8 (65 ratings)](https://appshunter.io/ios/app/erg-for-ios/id1597142669/reviews) |
| Number of ratings | 1 | **65** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 months** |
| Monetization | Free | Free |
| Best chart rank | — | **#148** |
| Size | 36 MB | 27 MB |
| Requires iOS | **10.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [SKC Inc.,](https://appshunter.io/developer/569246813) | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) |

## What reviewers say

### SKC SmartWave

[App page](https://appshunter.io/ios/app/skc-smartwave/id1453417531)

Monitor and control SKC Air Sample Pumps remotely via Bluetooth. View real-time status, adjust sampling parameters, and manage pump operations. Secure your devices with a lock feature.

**Highlights:** Bluetooth pump detection, Real-time status monitoring, Adjust sampling parameters, Start/stop/pause pump runs, Pump naming, Secure Lock feature

**Features:** macOS Compatibility

**In-app purchases:** none


### ERG for iOS

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

**Currently charting:** #148 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


## Frequently asked questions

### Is SKC SmartWave free?

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

### Is ERG for iOS free?

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

### Which has better reviews, SKC SmartWave or ERG for iOS?

SKC SmartWave is rated higher. SKC SmartWave averages 5.0 out of 5 from 1 ratings, while ERG for iOS averages 4.8 from 65 ratings.

### Do SKC SmartWave or ERG for iOS have ads?

Neither SKC SmartWave nor ERG for iOS shows ads.

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

SKC SmartWave ships an update every 18 months, and ERG for iOS every 4 months. Most recently, SKC SmartWave was updated on September 26, 2026 and ERG for iOS on October 25, 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.*