UN Number vs Decon Field Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UN Number
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.
- Enter UN numbers via keypad
- Quick information retrieval
- Based on ERI-Cards
- Offline functionality
- Categorized data display
- User-friendly interface
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Hazardous Materials Reference Guide: You can enter the UN number after starting the application using a big and easy to use keypad. Information can thus be retrieved quickly. This product uses ERI-Cards based Information but is not endorsed, certified or otherwise approved in any way by CEFIC. "The CEFIC Emergency Response Intervention Cards (ERICards or ERIC's) provide guidance on initial actions for fire crews when they first arrive at the scene of a chemical transport accident without having appropriate and reliable product specific emergency information at hand". (source: :www.ericards.net) The ERICards are displayed as a table following the seven categories. An internet connection is not needed to display the ERICards. Therefore, the app can be used with an ipod touch or in remote areas without internet connection. ------------------------ Disclaimer: The information displayed is based on the CEFIC-"Emergency Response Intervention Cards" (ERI-Cards). They are available at the Cefic website free of charge. The price you pay for this application is for the user-interface, data-formatting and search function. Cefic has developed ERICards in good faith and has made every effort to ensure the reliability and completeness of the information provided. They are designed as guidelines to be used by fire crews, in the case of an emergency response to a chemical transport accident. The information available on the ERICards should be applied on the basis of sound judgement, taking into consideration the particular circumstances of each accident and the specialised equipment available. Consequently, this information may not be sufficient or appropriate in all cases and the Cefic and 2denker will not be liable for the results of any misinterpretation or misuse of this information by fire crews or any other persons. Tags: Hazardous Materials Reference
Decon Field Guide
This reference app provides quick and efficient decontamination methods for hundreds of threats. It features a classic Threat Index, pictorial instructions, and an in-app dwell timer to guide users through mission execution. Designed for approved users, it aims to make anyone an instant decontamination expert.
- Threat Index for decontamination methods
- Pictorial instructions
- In-app dwell timer
- Covers hundreds of threats
- Designed for approved users
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Imagine decontamination in the palm of your hand. Introducing the all-new, redesigned Decon Field Guide. Using the same classic Threat Index, quickly and efficiently determine proper decontamination methods for hundreds of known and emerging threats and execute your mission flawlessly utilizing pictorial instructions and in-app dwell timer. Become an instant decontamination expert with the Decon Field Guide. Only available for approved users. Download now.
Screenshots
Verdict
UN Number and Decon Field Guide both sit at 4.7 stars, but that hides the real split: 63% of UN Number's written reviews are positive against 0% of Decon Field Guide's. UN Number also leads on ratings volume (55 vs 8) and iOS requirement (11.0 vs 15.1). Decon Field Guide's advantage is in-app purchases (none vs 5). On price, rating, update cadence and ads 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. UN Number sells 5 in-app purchases, starting at $1.99 per month. Decon Field Guide asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for UN Number against 4.6 for Decon Field Guide. That said, the two scores are not equally well evidenced: UN Number has 55 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 63% of UN Number's written reviews are positive against 0% of Decon Field Guide's.
UN Number ships an update every 3 months, Decon Field Guide every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | UN Number | Decon Field Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (55 ratings) — better | 4.6 (8 ratings) |
| Positive reviews | 63.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 55 — better | 8 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 44 MB | 74 MB |
| Age rating | 4+ | 17+ |
| Developer | ZWEIDENKER Holding GmbH | First Line Technology |
Customer experience
UN Number
Decon Field Guide
In-app purchases
UN Number
- UN⁺ Monthly14 Days trial$1.991 Month
- UN⁺ Yearly14 Days trial$17.991 Year
- ADR Label$0.99
- Hazard Diamond$0.99
- Hommel$2.99
Decon Field Guide
No in-app purchases
Questions
Is UN Number free?
Is Decon Field Guide free?
Which has better reviews, UN Number or Decon Field Guide?
Do UN Number or Decon Field Guide have ads?
Which is updated more often, UN Number or Decon Field Guide?
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