Comparison

EU Trademark Search Tool vs Data21

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

Head to head
About

EU Trademark Search Tool

Easily search for trademarks filed or registered with the EU Intellectual Property Office. Find information by trademark name, owner, or number, and utilize a class search engine. This free tool is ideal for entrepreneurs and legal professionals.

Highlights
  • Search by trademark name
  • Search by trademark owner
  • Search by trademark number
  • Trademark class search engine
  • Filter results by class number
  • Trademark FAQs
Features
Read full description

With this App you will be able to search for all trademarks that have been filed or registered with the Intellectual Property Office of the European Union. This App is perfect for start-ups, entrepreneurs, marketers, lawyers, and anyone else who often finds themselves in the need to check previous trademark records. The App is completely free and allows to search by trademark name, trademark number and trademark owner’s name. The trademark name search support identical and similarity modes and also, if needed, you can filter results by class number. The App also has a trademark class search engine, so you can search for the class that your product or service belongs to. European Union Trademark Search App Overview: - Search by Trademark Name - Search by Trademark Owner - Search by Trademark Number - Trademark Class Search Engine (Nice Classification) - Trademark FAQs This App is of a purely informative nature with no commercial ends; it is intended to provide information about the risks that you may face using or applying for your trademark registration in the European Union.

About

Data21

This application allows users to anonymously mark and collect important data and feedback about their products and businesses. It's designed to help businesses gather insights for investment, sales, and purchasing decisions.

Highlights
  • Anonymous data collection
  • Product feedback gathering
  • Business insights
  • Investment data support
  • Sales improvement data
  • Purchasing optimization data
Features
Read full description

Software Patent/INPI Register : BR 512021000013-7. In this application you can mark and collect important (anonymously) data and feedbacks about your product and business. The largest companies in the world collect data to receive bigger investments, to sell more and buy better (Nesse aplicativo você pode marcar e coletar importantes dados anônimos e feedbacks sobre o seu produto e negócio. As maiores empresas do mundo coletam dados para receber maiores investimentos, pra vender mais e comprar melhor.

Screenshots

EU Trademark Search Tool4 screens
Data214 screens

Verdict

The call

The clearest difference is update cadence: Data21 at every 5 days against EU Trademark Search Tool's fortnightly. EU Trademark Search Tool's advantage is iOS requirement (13.0 vs 26.4). On price, rating, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for EU Trademark Search Tool against 5.0 for Data21. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

EU Trademark Search Tool ships an update fortnightly, Data21 every 5 days. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
EU Trademark Search Tool versus Data21: the parameters behind the verdict, then further details
ParameterEU Trademark Search ToolData21
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.4
Further details — not scored
Size3 MB34 MB
Age rating4+17+
DeveloperMarcaria.com LLCAlexandre Alves da Costa

Customer experience

EU Trademark Search Tool

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Data21

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

EU Trademark Search Tool

No in-app purchases

None

Data21

No in-app purchases

Questions

Is EU Trademark Search Tool free?
EU Trademark Search Tool is free to download, with no in-app purchases.
Is Data21 free?
Data21 is free to download, with no in-app purchases.
Which has better reviews, EU Trademark Search Tool or Data21?
EU Trademark Search Tool and Data21 are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do EU Trademark Search Tool or Data21 have ads?
Neither EU Trademark Search Tool nor Data21 shows ads.
Which is updated more often, EU Trademark Search Tool or Data21?
EU Trademark Search Tool ships an update fortnightly, and Data21 every 5 days. Most recently, EU Trademark Search Tool was updated on October 17, 2026 and Data21 on October 24, 2026.

Other comparisons