Comparison

UN Number vs GESTIS

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

Head to head
About

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.

Highlights
  • Enter UN numbers via keypad
  • Quick information retrieval
  • Based on ERI-Cards
  • Offline functionality
  • Categorized data display
  • User-friendly interface
Features
Read full description

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

About

GESTIS

This reference tool provides international limit values for chemical agents. A web application is now available, as a native mobile app will no longer be supported after January 6, 2025.

Highlights
  • International limit values for chemical agents
  • Web application access
  • Reference tool for chemical substances
Read full description

GESTIS - International limit values for chemical agents

 With the reprogramming of our "GESTIS - International Limits" web application, the provision of a native mobile app for iOS is no longer necessary.  Therefore, no native app will be available in the respective stores from 06.01.2025.  Instead, the web application can be found here: https://www.dguv.de/ifa/gestis/gestis-internationale-grenzwerte-fuer-chemische-substanzen-limit-values-for-chemical-agents/index-2.jsp

Screenshots

UN Number4 screens
GESTIS4 screens

Verdict

The call

The clearest difference is review sentiment: GESTIS at 100% against UN Number's 63%. GESTIS also leads on in-app purchases (none vs 5). UN Number's advantage is update cadence (every 3 months vs every 7 months) and iOS requirement (11.0 vs 14.0). On price, ads and device support 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. UN Number sells 5 in-app purchases, starting at $1.99 per month. GESTIS asks for nothing beyond the download.

UpkeepUpdate frequency

UN Number ships an update every 3 months, GESTIS every 7 months. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 5 level
UN Number versus GESTIS: the parameters behind the verdict, then further details
ParameterUN NumberGESTIS
PriceFreeFree
Rating4.7 (55 ratings) — better—
Positive reviews63.0% of reviews100.0% of reviews — better
Number of ratings55 — better—
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS11.0 — better14.0
Further details — not scored
Size44 MB7 MB
Age rating4+4+
DeveloperZWEIDENKER Holding GmbHDeutsche Gesetzliche Unfallversicherung e.V. (DGUV)

Customer experience

UN Number

All ratings54 ratings
Positive92.6%
Neutral1.9%
Negative5.6%
Written reviews27 reviews
Positive63.0%
Neutral7.4%
Negative29.6%

GESTIS

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

UN Number

Subscriptions2
  • UN⁺ Monthly14 Days trial$1.991 Month
  • UN⁺ Yearly14 Days trial$17.991 Year
One-time3
  • ADR Label$0.99
  • Hazard Diamond$0.99
  • Hommel$2.99
None

GESTIS

No in-app purchases

Questions

Is UN Number free?
UN Number is free to download, with in-app purchases available.
Is GESTIS free?
GESTIS is free to download, with no in-app purchases.
Do UN Number or GESTIS have ads?
Neither UN Number nor GESTIS shows ads.
Which is updated more often, UN Number or GESTIS?
UN Number ships an update every 3 months, and GESTIS every 7 months. Most recently, UN Number was updated on October 23, 2026 and GESTIS on October 14, 2026.

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