# UN Number vs Cargo Decoder Plus

The clearest difference is price: UN Number at Free against Cargo Decoder Plus's $1.99. UN Number also leads on rating (4.7 vs 4.3) and ratings volume (54 vs 6). Cargo Decoder Plus's advantage is in-app purchases (none vs 5) and update cadence (monthly vs every 3 months). On ads and device support there is nothing between them.

UN Number is free to download; Cargo Decoder Plus costs $1.99 up front. UN Number sells 5 in-app purchases, starting at $1.99 per month. Cargo Decoder Plus asks for nothing beyond the download.

UN Number holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: UN Number has 54 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 63% of UN Number's written reviews are positive against 71% of Cargo Decoder Plus's, so the app with the better star average is not the one people write more warmly about.

UN Number ships an update every 3 months, Cargo Decoder Plus monthly. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | UN Number | Cargo Decoder Plus |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.7 (54 ratings)](https://appshunter.io/ios/app/un-number/id307373793/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/cargo-decoder-plus/id520387030/reviews) |
| Number of ratings | **54** | 6 |
| Positive reviews | 63.0% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 44 MB | 28 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 12+ |
| Developer | [ZWEIDENKER Holding GmbH](https://appshunter.io/developer/307356444) | [Strategies In Software](https://appshunter.io/developer/520387033) |

## What reviewers say

### UN Number

[App page](https://appshunter.io/ios/app/un-number/id307373793)

Quickly access essential information for hazardous materials emergencies. This reference guide provides detailed data based on established emergency response cards, usable even without an internet connection. It's designed for rapid retrieval of critical details in critical situations.

**Highlights:** Enter UN numbers via keypad, Quick information retrieval, Based on ERI-Cards, Offline functionality, Categorized data display, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UN⁺ Monthly | $1.99 | per month |
| UN⁺ Yearly | $17.99 | per year |
| ADR Label | $0.99 | one-time |
| Hazard Diamond | $0.99 | one-time |
| Hommel | $2.99 | one-time |


### Cargo Decoder Plus

[App page](https://appshunter.io/ios/app/cargo-decoder-plus/id520387030)

Instantly identify hazardous materials by their 4-digit DOT placard number. Access comprehensive safety information from multiple Emergency Response Guidebook editions, even offline. Quickly search by number or material name for critical details.

**Highlights:** Identify materials by DOT placard number, Access ERG 2024, 2020, 2016, 2012 editions, Search by UN/NA placard number or material name, View protective distance and toxic inhalation hazards, Offline access, no network required, Learn about GHS classification and labeling

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UN Number free?

UN Number is free to download, with in-app purchases available.

### Is Cargo Decoder Plus free?

Cargo Decoder Plus costs $1.99, with no in-app purchases.

### Which has better reviews, UN Number or Cargo Decoder Plus?

UN Number is rated higher. UN Number averages 4.7 out of 5 from 54 ratings, while Cargo Decoder Plus averages 4.3 from 6 ratings.

### Do UN Number or Cargo Decoder Plus have ads?

Neither UN Number nor Cargo Decoder Plus shows ads.

### Which is updated more often, UN Number or Cargo Decoder Plus?

UN Number ships an update every 3 months, and Cargo Decoder Plus monthly. Most recently, UN Number was updated on September 22, 2026 and Cargo Decoder Plus on September 14, 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.*