What 3 Words App – Free Download, Uses and Safety Guide

The what3words app assigns a unique three-word address to every 3-meter square on Earth, enabling precise location sharing without complex coordinates. Available for Android and iOS devices, the free application converts GPS coordinates into memorable word combinations, making it possible to identify exact locations for emergencies, deliveries, and navigation.

Emergency services across the United Kingdom and United States have integrated the technology into their dispatch systems. Over 4,800 American 9-1-1 centers and 85 percent of UK emergency services now accept three-word addresses, according to official store documentation. The app operates offline using GPS signals, requiring no mobile data to identify your current location or navigate via compass.

This article covers the application’s core functionality, download procedures for different platforms, safety credentials, and its specific adoption within the UK market, based on official store listings and company documentation.

What is the what3words app used for?

Core Function: 3-word addresses for 3m squares

Platforms: Android, iOS

Pricing: Free download

Key Use: Navigation, emergencies

Key Capabilities

Simplifies location sharing without coordinate transcription errors
Integrated into emergency services dispatch systems globally
Precise to 3-meter accuracy for specific entrances and locations
Free core functionality with offline GPS capability
Supports 50 to 60 languages for international use
Compatible with Google Maps and Apple Maps routing
Includes compass navigation and location saving features

Attribute	Detail
Developer	what3words
Coverage	Every 3m square globally
Platforms	Android, iOS, Wear OS
Primary Use	Precise navigation
Android Requirement	Android 7.1 (Nougat) or later
iOS Requirement	iOS 15.0+, iPadOS 15.0+, watchOS 8.0+
Download Volume	10M+ (Google Play)
Offline Capability	Yes, via GPS
UK Emergency Adoption	85% of services
US Emergency Adoption	4,800+ 9-1-1 centers
Languages Supported	50-60 languages
Google Play Rating	3.7/5 stars (46.4K reviews)

How do you download the what3words app?

Android Installation

Android users can download the application from Google Play free of charge. The software requires Android 7.1 (Nougat) or later and has accumulated over 10 million downloads. Huawei devices without Google Play access can utilize the service through mobile web browsers including Chrome or Safari.

iPhone and iOS Devices

iOS availability extends to iPhone, iPad, and Apple Watch through the App Store. Requirements include iOS 15.0 or later for iPhone and iPod touch, iPadOS 15.0+, watchOS 8.0+, or visionOS 1.0+. The application supports Wear OS compatibility for smartwatch navigation and Wearables integration.

Offline Functionality

The application requires no data signal for core functions including finding your three-word address or compass navigation, as it relies solely on GPS satellite positioning. Performance improves significantly in outdoor settings with clear sky visibility.

Is the what3words app free?

Pricing Structure

The base application is free to download on both Google Play and the App Store. While the core functionality incurs no cost, the Google Play listing indicates in-app purchases are available, though specific pricing tiers for premium features are not detailed in store descriptions.

Safety and Privacy Standards

Google Play rates the application as suitable for “Everyone” with no explicit safety concerns documented in official store descriptions. The developer documentation confirms official support channels through support@what3words.com with terms available at what3words.com/terms. No security risks, malware infections, or data breaches appear in available search results or documentation.

What is the what three words app in the UK?

The what3words company operates from the United Kingdom, with British origins noted in technical reviews on YouTube describing it as a “proud British” innovation. Domestic adoption rates exceed international averages, with 85 percent of UK emergency services integrating the technology alongside the Automobile Association (AA) and major delivery firms. British businesses and hotels frequently display three-word addresses on contact pages and stationery.

UK Emergency Integration

British emergency responders accept three-word addresses for rapid location identification, particularly valuable in rural areas lacking traditional street addresses or where postcodes cover broad geographic areas.

Web Access Limitations

While the mobile applications provide full offline functionality, Huawei users and those on restricted devices must access the service through Chrome or Safari mobile browsers, which may offer limited functionality compared to native applications.

For finding local automotive services by precise location, see Car Garage Near Me.

When did the what3words app become available?

Algorithm Development: what3words developed the proprietary system dividing the world into 3m squares, documented at what3words.com/about.
Initial App Launch: Applications launched on Google Play and the App Store for ongoing availability.
UK Emergency Integration: 85% of UK emergency services adopted the technology for dispatch operations.
US Market Entry: Over 4,800 American 9-1-1 centers integrated three-word addressing.
Language Expansion: Platform expanded to support 50 to 60 languages globally.
Wearable Compatibility: Apple Watch and Wear OS support added for smartwatch navigation.
Feature Enhancement: AutoSuggest, camera scanning, and photo tagging capabilities implemented.

Is the what3words app safe to use?

Established Information	Unverified Details
Free download from official Google Play and App Store	Specific costs and features of in-app purchases
Rated “Everyone” by Google Play with no age restrictions	Detailed revenue model beyond free tier
No documented security breaches or malware detections	Data retention policies for saved location lists
Operates via GPS without requiring personal data transmission	Long-term corporate ownership or acquisition plans
Emergency services integration verified by official sources	Premium enterprise pricing tiers

How does the what3words location system work?

The system divides the entire planet into 57 trillion squares measuring 3 meters by 3 meters (approximately 10 feet), assigning each a unique combination of three dictionary words. This addressing method contrasts with traditional latitude-longitude coordinates, which are prone to transcription errors and difficult to communicate verbally. The algorithm ensures that similar word combinations are geographically distant, preventing confusion between similar addresses.

Users enter or speak three words to retrieve a precise location, which the app then routes through integrated services like Google Maps or Apple Maps for turn-by-turn directions. The technology complements existing navigation infrastructure rather than replacing it, providing the final-meter accuracy that street addresses often lack. Official documentation confirms the system works entirely offline, calculating positions via GPS coordinates converted to word combinations.

What sources verify the what3words app details?

“Every 3 metre square of the world has been given a unique combination of three words.”

— what3words Official Documentation

“Available for free on Android and iOS devices, providing precise 3-meter square location identification.”

— Google Play Store Description

Should you download the what3words app?

For individuals requiring precise location sharing, particularly in areas with ambiguous addressing or for emergency preparedness, the what3words app provides a free, lightweight solution compatible with modern Android and iOS devices. While the application complements rather than replaces traditional navigation tools, its adoption by emergency services and delivery companies offers practical utility for both safety and convenience. For tracking deliveries with precise location data, consult the Royal Mail Track Parcel Guide.

Frequently Asked Questions

Does what3words work without internet?

Yes. The app functions offline using GPS satellite signals to determine your three-word address and provide compass navigation. No mobile data or Wi-Fi connection is required for core location features, though internet connectivity assists with map loading and route sharing through integrated services.

How accurate is the what3words location system?

The system divides the world into 3m x 3m squares (approximately 10 feet), providing precise location identification. This granularity exceeds standard street addressing, enabling users to identify specific building entrances, parking spots, or remote locations without traditional address infrastructure.

Can businesses use what3words for deliveries?

Yes. UK delivery firms integrate three-word addresses for precise drop-off locations. Hotels and businesses display these addresses on contact pages to guide customers to specific entrances. The system proves particularly valuable for locations lacking traditional street addresses or with ambiguous postal codes.

Is what3words better than traditional GPS coordinates?

The app complements rather than replaces GPS coordinates. While coordinates require complex number strings prone to errors, three-word addresses offer human-friendly precision. However, the app displays coordinates alongside words for technical reference, integrating with existing navigation tools for routing.

What languages does the app support?

The application supports over 50 languages globally, with the algorithm ensuring similar word combinations remain geographically distant across all language versions. Users can switch between languages to generate addresses in their preferred tongue while maintaining the same physical location accuracy.

How do I share a three-word address with friends?

Users share the three words in format ///word.word.word via text, email, or messaging apps. Recipients enter these words into their what3words app or the web platform to view the exact 3m square location, with options to navigate there using their preferred mapping application.