What is Geofencing? Marketing by Location

Ever received a notification from a store app right as you walked by? That's geofencing in action, virtual boundaries that trigger actions when someone enters or exits.

This guide explains geofencing: how it works, marketing applications, and how it relates to store locators.

Related reading: What is a store locator? | What is geocoding?

#Geofencing Definition

Geofencing is a technology that creates virtual boundaries around geographic areas. When a mobile device enters or exits these boundaries, predefined actions trigger.

Example:

• You define a 500-meter radius around your store
• Customer with your app enters that radius
• They receive a push notification: "Welcome! Show this for 10% off"

The "fence" is virtual, invisible to the customer but detected by their device.

#How Geofencing Works

#The Technical Process

1. Define the Geofence

Specify:

• Center point (coordinates)
• Radius or polygon shape
• Actions to trigger

2. Register on Devices

Mobile apps register geofences with the operating system:

• iOS: Core Location
• Android: Location Services

3. Monitor Location

The device periodically checks location against registered fences. This happens at the OS level, even when the app isn't active.

4. Trigger Action

When crossing a fence boundary:

• Entry trigger: "User entered the zone"
• Exit trigger: "User left the zone"
• Dwell trigger: "User has been here X minutes"

5. Execute Response

Common actions:

• Push notification
• SMS message
• In-app content change
• Backend data logging
• Email trigger

#Location Technologies Used

Most geofencing uses a combination, balancing accuracy with battery preservation.

#Geofencing Use Cases

#Retail Marketing

Geofencing is particularly powerful for retail businesses that want to drive foot traffic.

Store proximity:

• Trigger: Customer approaches store
• Action: Send deal notification
• Goal: Drive foot traffic

Competitor conquesting:

• Trigger: Customer enters competitor's area
• Action: Show your offer
• Goal: Intercept customers

Mall/shopping center:

• Trigger: Enter mall
• Action: Show store directory with your location highlighted
• Goal: Guide to your store

#Restaurant & Food Service

Restaurants can use geofencing to capture nearby hungry customers at the right time.

Lunch hour targeting:

• Trigger: Office workers near restaurant at 11:30 AM
• Action: Send lunch special
• Goal: Capture lunch traffic

Pickup orders:

• Trigger: Customer approaches restaurant
• Action: Notify kitchen to start order
• Goal: Fresh food, no wait

#Events & Entertainment

Venue engagement:

• Trigger: Enter stadium
• Action: Show seat upgrade offers
• Goal: Upsell

Festival navigation:

• Trigger: Different zones of event
• Action: Show nearby acts/vendors
• Goal: Enhance experience

#Real Estate

Open house:

• Trigger: Near listed property
• Action: Send property details
• Goal: Generate leads

Neighborhood targeting:

• Trigger: People in target neighborhoods
• Action: "Thinking of selling?" ads
• Goal: Listing leads

#Automotive

Auto dealers use geofencing for service reminders and new inventory alerts.

Service reminders:

• Trigger: Customer near dealership
• Action: "Due for service? Stop in today!"
• Goal: Service appointments

New inventory:

• Trigger: Previous customers nearby
• Action: "New models just arrived"
• Goal: Repeat sales

#Geofencing vs Geotargeting

People often confuse these:

#Geofencing

• Real-time boundary triggering
• Requires app installed
• Triggers when crossing fence
• Precise geographic action
• Ongoing monitoring

Example: "Send notification when user enters this area."

#Geotargeting

• Showing ads based on location
• Works through ad platforms
• Based on IP or device location
• One-time targeting
• No ongoing monitoring

Example: "Show this ad to people in Chicago."

Both are location-based marketing, but they work differently.

#Geofencing and Store Locators

#How They Connect

Store locators and geofencing serve related purposes:

#Using Together

Complementary strategies:

1. Customer discovers you via store locator
2. They download your app (prompted on locator page)
3. Geofences register for your locations
4. Future visits trigger personalized engagement

Store locator data informs geofencing:

• Where customers search (from locator analytics)
• High-traffic stores (geofence priority)
• Coverage gaps (where not to fence)

#StoreRocket + Geofencing

While StoreRocket focuses on store locators (helping customers find you), the location data you manage can inform geofencing strategies:

• Your store coordinates are geofence center points
• Your analytics show where to prioritize
• Your data integrates via API

Try StoreRocket Free →

#Geofencing Best Practices

#Get Permission

Requirements:

• App must request location permission
• User must grant permission
• Clear privacy policy
• Easy opt-out

Best practice: Explain the value exchange. "Allow location to get deals near you."

#Size Your Fences Appropriately

Too small:

• May not trigger (GPS imprecision)
• Miss customers passing nearby

Too large:

• Triggers too far from store
• Feels irrelevant

Sweet spots:

• Store proximity: 100-500 meters
• Mall/shopping center: 200-1000 meters
• Event venue: Match actual boundaries
• Competitor: 200-500 meters

#Don't Over-Message

Problems with excessive messages:

• Notification fatigue
• App deletion
• Opt-outs
• Brand damage

Guidelines:

• Limit frequency per user
• Only message when valuable
• Allow preferences control
• Test message timing

#Personalize When Possible

Generic: "Visit us today!"

Better: "Sarah, your favorite items are back in stock at our Downtown location."

Use purchase history, preferences, and context to make messages relevant.

#Measure Everything

Track:

• Trigger rates (fences working?)
• Open rates (messages compelling?)
• Conversion rates (driving action?)
• Attribution (sales from geofencing?)

Iterate based on data.

#Geofencing Challenges

#Battery Concerns

Constant location monitoring drains batteries. Solutions:

• Use significant location change (less precise, less power)
• Limit active geofences
• Let OS manage monitoring

#Accuracy Limitations

GPS isn't perfect:

• Urban canyons reduce accuracy
• Indoor positioning is weak
• Weather affects signals

Design fences accounting for imprecision.

#Privacy Sensitivity

Location tracking is sensitive:

• Be transparent about data use
• Don't be creepy
• Honor opt-outs immediately
• Comply with regulations (GDPR, CCPA)

#Platform Differences

iOS and Android handle geofencing differently:

• iOS limits to 20 concurrent fences
• Android allows 100+
• Behavior varies by OS version
• Testing on both platforms essential

#Geofencing Technology Stack

#For Implementing Geofencing

Mobile SDKs:

• Radar (popular third-party)
• Gimbal
• Bluedot
• Native iOS/Android APIs

Marketing platforms with geofencing:

• Foursquare
• GroundTruth
• Factual
• Various CDP/marketing automation platforms

Requirements:

• Mobile app (not possible with website alone)
• Location permission from user
• Backend for defining fences and actions
• Message delivery system (push, SMS, etc.)

#Frequently Asked Questions

#Does geofencing work without an app?

Limited. Full geofencing requires a mobile app. Web-based location targeting (geotargeting) works but can't trigger real-time actions when crossing boundaries.

#Is geofencing creepy?

It can be if done poorly. Best practice: be transparent, provide value, don't over-message, and make opt-out easy. Done right, customers appreciate relevant, timely offers.

#How accurate is geofencing?

Depends on technology:

• GPS: 3-10 meters outdoors
• Wi-Fi: 15-50 meters
• Cell: 100+ meters
• Beacons: 1-3 meters indoors

Design fence sizes accounting for imprecision.

#What's the difference between geofencing and beacons?

Geofencing uses GPS/cell/Wi-Fi for outdoor areas. Beacons use Bluetooth for precise indoor positioning. Many systems use both for complete coverage.

#Can geofencing target competitor locations?

Yes, this is called "conquesting" or "competitor geofencing." It's legal but consider the ethics and how you message. Focus on your value proposition, not disparaging competitors.

#Connecting It All

Store locators help customers find you (pull marketing).

Geofencing helps you reach customers near you (push marketing).

Together, they create a complete location marketing strategy:

1. Store locator captures interest and provides location data
2. Geofencing uses that data to engage customers proactively
3. Analytics from both inform strategy refinement

Start with a great store locator:

Try StoreRocket Free for 7 Days →

Build your location foundation. Add geofencing when ready.

Questions about location-based marketing? Contact us.

Related: Geofencing marketing guide | What is geocoding? | "Near me" SEO guide | Local marketing guide