Apple, the Apple logo, iPhone, iPad, and iPod touch are trademark of apple Inc., registered in the U.S. and other countries.  App Store is a service mark of Apple Inc.

Version 2.0 of the GeoWDN universal iOS app is available for the Apple iPhone ® and iPad ®.  The GeoWDN macOS app is also available.

The GeoWDN application for the Androïd platform is under development.

Androïd is a trademark of Google Inc.

Google Play and Google Play logo are trademarks of Google Inc.

A World Direct Number (WDN) is the fastest and easiest way to publish a geographic location !  The GeoWDN app allows you to create and publish a WDN coordinate on a business card, website, social networks, in a local newspaper, advertising flyer and on many other media.

Use the GeoWDN app to geographically locate your business.

Activate the WDN coordinate once so that you can publish it for life.

Publishing your geographic coordinates using a WDN coordinate is as simple as putting the phone number on your business card.

Digital business card on a website

Give occasional visitors to your website the chance to memorize, in one click, your digital business card which is easy to add by your webmaster.

The GeoWDN app generates the HTML fragment to create a digital business card.

A digital business card contains an activated WDN coordinate, your telephone numbers, email addresses, opening hours, link to your website and any other links and information useful to your customers.

You always have control over the information published in your digital business card. An update by your webmaster can be made at any time.

The GeoWDN app is a personal geomarker manager and GPS locator.  It is the ideal and free application that allows tourists to plan their next visit to your city.  Thanks to your digital business card that they have memorized with the GeoWDN app , they will easily locate your business.

A WDN digital business card is easily shared by Air Drop and iMessage.

Digital business card shared via email

For a company, a digital business card can be shared by simple email and a distribution list.  For an individual, indicate precisely the place of delivery of your online purchases by giving your WDN coordinate by telephone or e-mail.

The GeoWDN app generates the email by automatically inserting your digital business card.

Digital business card in a QR code

Your business or organization does not have a website, it is possible to include the URL of a digital business card in a QR code.  Use a free online authoring tool.

The GeoWDN app does not generate a QR code.

The app generates the URL without HTML that can be used to create the QR code of its digital business card, containing an activated WDN coordinate.

Limit the amount of information to include in the QR code to ensure readability.

Erusën inc authorizes the use of the GeoWDN app logo for the publication of an activated WDN coordinate.

You may add this QR code to facilitate the installation of the app on a smart device.


To illustrate its use, download the GeoWDN app for free on your smartphone.  The WDN coordinates published on this page are examples of digital business card that can be retrieved with the GeoWDN app.

For ease of reading, vowels are lowercase. In the GeoWDN app, the separators “.” are necessary for entries with the specialized keyboard.

Historic places

                        The Alexandria Lighthouse, Egypt

                                   The Sphinx at Giza, Egypt

                                   The Roman Coliseum, Italy

                          Angkor Vat, Cambodia

                               Machu Pichu, Peru

                             Stonehenge, England

                                 Teotihuacan, Mexico

Geographic locations

The Volcanic Crater of Xico, Mexico

Devils Tower, United States

Grand Prismatic Spring, United States

Great Blue Hole, Belize

Egmont National Park, New Zealand

The Cretaceous Richat Complex, Mauritania

Mount Vesuvius, Italy

Carry with you interesting places and easily find them using your devices’s location.

Some motor sport racing tracks ...









Some places of worship ...

Cologne Cathedral, Cologne, Germany

Westminster Abbey, London, England

Atago Shrine, Tokyo, Japan

Mahabodhi Temple, Bodhgayâ, India

Great Mosque of Kairouan, Tunisia

Church of Saint George, Labibela, Etiopia

Mickve Israel, Georgia, United States

Stadiums ...

Maracanã Stadium

Beijing National Stadium

Montreal Olympic Stadium

Athens Olympic Stadium

London Olympic Stadium

Los Angeles Memorial Coliseum

Melbourne Cricket Ground

Hotels ...

                             Harvey’s Point, Ireland

                                 Gili Lankanfushi, Maldives

                                 Cocoa Island, Maldives

                             Casa Gangotena, Quito Ecuador

                          The Upper House, Hong Kong

                                 The Oberoi, Mauritius

                             The Langham, Chicago

With GeoWDN application, gather waypoints into group for displaying a round tour.

Around Paris

                             The Arc of Triomphe in the Place de l’Étoile

                             Café de l’esplanade

                                 Luxembourg Palace

                               Floor of the Orangerie

                                   Museum of Jeu de Paume

                             Vincennes Woods

                                   Buttes Chaumonts park

Around New York City

                                 The Metropolitain Museum of Art

                        Daniel New York restaurant

                             Forlini’s New York restaurant

                                   Rooftop Bar Le Bain

                             Charging Bull (Wall Street Bull)

                                   One World Trade Center

                                 Brooklyn Bridge

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