Geofencing marketing has a branding problem: the name covers two businesses that have almost nothing in common. One is an advertising product, where you rent an audience by paying for impressions served to phones that entered an area you drew on a map. The other is a feature already sitting in your customers' phones, free, that puts a card they chose to keep on their lock screen when they are near your door.
Both get called geofencing. Only one of them is available to a café with three branches and no media budget. This guide explains what geofencing actually is, the three ways businesses use it, what each one really costs, and how to pick.
What Is Geofencing?
A geofence is a virtual boundary around a real place — usually a circle of a given radius around a latitude and longitude, sometimes a shape traced around a building or a district. Software watches for a device crossing that boundary and does something when it does.
The phone works out where it is from a mix of GPS, nearby Wi-Fi networks, mobile cell towers, and sometimes Bluetooth beacons for indoor precision. The "fence" itself is just maths: is this point inside this circle. Everything interesting is in what happens next, and that is where the three models split apart.
Geofencing vs Geotargeting
The two words get used interchangeably and they should not be.
Geotargeting is broad and mostly about who sees your ad: show this campaign to people in Dubai, or in the UAE, or within this postcode. It works off a coarse location — often derived from the network, not the GPS chip — and it is the standard setting on every ad platform.
Geofencing is narrow and event-based: something happens because a device crossed a specific, small boundary — a shopping mall, a stadium, a competitor's car park. The unit is a place you could point at, not a region.
Rule of thumb: geotargeting picks the city, geofencing picks the corner.
The Three Ways Businesses Actually Do Geofencing
1. Geofenced advertising
You draw fences around locations — your own shops, event venues, competitors' branches — and an ad platform serves display, video, or social ads to devices that entered them, often for weeks afterwards. This is the model most "geofencing marketing agency" pages are selling.
It reaches strangers, which is its genuine strength: nobody else on this list can do that. But you are buying impressions on rented land. You pay for every thousand ads shown, whether or not anyone looks; the audience evaporates the moment you stop paying; and the whole thing rests on third-party location data whose accuracy and provenance are, to put it gently, uneven. Advertisers bid seriously for these keywords, which tells you where the margin sits — and it is not with the small business buying.
2. App push with geofences
If you have your own mobile app, you can register geofences inside it and fire a push notification when a customer crosses one. Precision is good, cost per message is nothing, and the customer already knows you.
The catch is the app itself. Building one is expensive, and then the customer has to download it, keep it, and grant background location permission — three consecutive yeses that most people never give a coffee shop. We have written about why customers don't download apps; for the overwhelming majority of local businesses, this route is a plan for a company they are not.
3. Wallet pass relevance
Every pass in Apple Wallet and Google Wallet — loyalty card, stamp card, membership, ticket — can carry coordinates. When the customer is near one, the phone surfaces the card: on the lock screen with a line of text you wrote, without an app, without a message being sent, and without you paying anyone.
The limits are real and worth stating plainly: up to ten locations per pass on both platforms, no analytics to prove it fired, and it only works for customers who already hold your card. The mechanics — which keys do what, which Google field is now deprecated, and how far you can control the radius — are covered in our guide to Apple Wallet geofencing.
What Geofencing Marketing Costs
Ads are the only one of the three with a price tag attached to every impression: you pay to reach the audience, you pay again next month, and if you stop, the reach stops with you. Agencies typically add a management fee on top of the media spend, and the useful question to ask any of them is what happens to your results when the budget pauses.
An app is a capital cost — build it, maintain it, market the download — after which the messages are effectively free, if anyone installed it.
Wallet relevance is the odd one out: no media cost at all, because you are not buying attention. The cost is the work of getting cards into hands, one QR scan at a time at the counter. That is slower than buying a list — and it is why the audience keeps working after you stop spending.
Geofencing Examples That Work for Small Businesses
The mall entrance, not just your shop. A pin on the car park and the metro exit catches people while the decision is still open. A pin on your own doorway catches people who already arrived.
The office tower across the road. Lunchtime footfall is a geography problem: fence where the customers spend the morning, not where you want them at noon.
Event venues near you. A stadium, an exhibition centre, a wedding venue — a card that resurfaces as thousands of people leave is a cheap way to catch a predictable rush.
Your other branches. A customer standing at your Marina shop can be told that the Downtown branch is open later. Because the on-pass text is per location, each branch can say something different.
Hotel lobbies for tourist-facing businesses. The classic tourism play, and one where a card in the wallet beats a flyer that gets binned at check-out.
The Privacy Question You Should Ask
Location marketing sits close to a line customers care about, and the three models sit on very different sides of it.
Geofenced advertising works because a data supply chain knows where strangers' phones have been. That is legal in most markets with the right consents, and it is also exactly the practice that regulators and app-store policies keep tightening.
Wallet relevance never sends a location anywhere. The evaluation happens on the customer's own device, against coordinates you shipped inside the pass; nothing is reported back to you, which is why you get no analytics. You are not tracking anyone — you gave them a card, and their phone is being helpful about it. In a market where customers are increasingly sceptical of being followed around, that difference is worth more than the reporting you give up.
Where to Start
If you are a local business with repeat customers, start with the free version. Get a loyalty or stamp card into Apple Wallet and Google Wallet, put your branch coordinates on it, and write a lock-screen line that sounds like a reminder rather than an ad. It costs nothing per customer, it works on the phone they already carry, and it compounds: every card you issue is a permanent, unrented piece of lock-screen real estate.
Add paid geofenced ads later, if and when you need to reach people who have never heard of you — and judge them on what they cost per new customer, not per thousand impressions.
Wally puts your card in both wallets with location relevance, per-branch text, and lock-screen push built in. See how wallet geofencing works, or book a short demo and we will set it up on your own coordinates.