What is a Beacon: a complete guide to customer acquisition

Fecha: 22 de May de 2026 Noelia Leiro

Engaging customers in the physical environment presents a challenge for companies with a digital presence. Often, users pass by a business without interacting with it, which translates into a lost opportunity for traditional marketing.

This is where Beacon technology transforms the game, enabling mobile apps to interact with users at the precise time and place, bridging the gap between the digital and physical world to increase conversions and enhance the customer experience.

You will be amazed at what they are capable of. Press play or continue reading:

What is Beacon and how does this proximity technology work?

A Beacon is a small hardware device that uses Bluetooth Low Energy (BLE) technology to continuously transmit a low-energy radio signal. Nearby smartphones that have a compatible app installed can detect these signals, allowing companies to send notifications or trigger contextual actions based on the user’s proximity.

Unlike GPS, which relies on satellites and works best outdoors with considerable battery consumption, Beacons are ideal for indoor location. Their typical range varies from 2 to 70 meters, depending on configuration and interference. BLE technology is 60-80% cheaper than traditional Bluetooth or RFID, and consumes very little power, allowing devices to have a battery life of up to 10 years in optimized models.

Beacons do not require an active connection from the user, simply that the smartphone’s Bluetooth is turned on and that the application has the necessary permissions to scan for BLE signals. Explore geofencing.

The 3 types of Beacons and which one you need for your business

Choosing the right Beacon protocol is critical to the success of your proximity marketing strategy. Each offers different advantages depending on the ecosystem of your application and your target audience.

Here are the three main protocols:

• iBeacon (Apple): This is Apple’s proprietary standard, launched in 2013. It is ideal if your primary audience uses iOS devices, as it offers native integration and optimized performance in this ecosystem.
• Eddystone (Google): Developed by Google in 2015, it is an open source and more flexible protocol. It supports multiple types of “frames” (UID, URL, TLM, EID), allowing URLs to be sent directly to users without the need for a specific native application, ideal for the “Physical Web”.
• AltBeacon: It is an open source alternative created by Radius Networks. It offers greater interoperability between platforms (iOS and Android) and allows greater control over the transmitted data, being a robust option for custom developments.

Below is a detailed comparison to help you make the best decision:

Real-world use cases: how retail, events and mobile apps use Beacons to engage customers

Beacon adoption is revitalizing physical retail and enriching event experiences. The global Beacon technology market is projected to reach $31.61 billion by 2026, demonstrating its growing relevance according to Fortune Business Insights.

• Physical retail: When a customer with the store app enters a specific area, the Beacon can trigger a push notification with a personalized offer, a discount on a nearby product or information on complementary items. McDonald’s in Turkey, for example, achieved 20% interest in a coffee offer and 30% multiple redemptions in a campaign with Beacons.
• Events and trade shows: Beacons facilitate engagement at booths, guide attendees to specific sessions or collect leads by offering exclusive content. They can send alerts about ongoing presentations or invite participation in sweepstakes.
• Transportation and tourism apps: They provide contextual information at stations, bus stops or tourist points of interest. A museum app, for example, can provide details about a specific work of art when approaching it.
• Museums and cultural spaces: They offer automated interactive guides, playing audio or showing videos when detecting the proximity of the visitor to an exhibition.

How to implement Beacons in your strategy: technical step by step

Implementing Beacons requires careful planning to ensure maximum effectiveness. A structured approach minimizes errors and optimizes return on investment.

1. Step 1: Define objectives and critical touch points. Before purchasing hardware, identify what you want to achieve (increase sales, improve engagement, collect data) and where proximity interaction will have the greatest impact. For example, in a clothing store, critical points could be the entrance, fitting rooms or specific product sections.
2. Step 2: Select hardware and configure devices. Choose the type of Beacon (iBeacon, Eddystone, AltBeacon) that best suits your app ecosystem and needs. Most modern Beacons, such as Teltonika BTSID1, support both iBeacon and Eddystone protocols, offering flexibility. Configure its UUID, Major, Minor (for iBeacon) or frames (for Eddystone) and transmit power to adjust the range.
3. Step 3: Integrate SDK into your mobile app (iOS/Android). Your application must be able to “listen” to Beacon signals. This is achieved by integrating a Software Development Kit (SDK) that enables the app to detect Beacons and react to their proximity. SDKs from vendors such as Estimote or Kontakt.io are popular, with Estimote leading in adoption according to Appfigures.
4. Step 4: Design proximity-based messages and triggers. Create the content to be sent to users (offers, information, surveys) and define the rules (triggers) that will trigger those messages. For example, “if a user enters the electronics section and has previously looked at smartphones in the app, send them a 10% discount on accessories”.
5. Step 5: Test scope and user experience before launch. Performs extensive testing in the real-world environment to verify that Beacons cover the desired areas, that notifications are triggered correctly and that the user experience is smooth and non-intrusive.

Key metrics to measure ROI of your strategy with Beacons

To ensure that your investment in Beacons generates tangible results, it is crucial to measure performance with specific indicators. These metrics will allow you to optimize your strategy and demonstrate its value.

• Detection rate: Measures the percentage of users with your app installed that are detected by a Beacon when passing by. A high rate indicates good coverage and that the app is working properly in the background.
• Engagement rate: Refers to the percentage of users who interact with the notifications or content activated by the Beacon. While traditional push notifications have open rates of 3-6%, transactional ones can reach 70-90%; Beacon notifications, being contextual, are expected to have a higher engagement rate.
• Attributed conversion: Quantifies sales or desired actions (registrations, content downloads) that can be directly linked to interactions with Beacons. For example, if a customer uses a Beacon-sent coupon for a purchase.
• Dwell time: This is the average time spent by users in a Beacon’s zone of influence. A higher dwell time in key sections may indicate a higher interest and effectiveness of the proximity content.

Common mistakes that kill the effectiveness of Beacons (and how to avoid them)

Despite their potential, poor implementation of Beacons can result in user frustration and low ROI. Avoiding these pitfalls is crucial to success.

• Notification spam: Bombarding users with excessive or irrelevant notifications is the leading cause of app uninstalls. Excessive push notifications increase uninstallations by 43% according to Appbot, so moderation and relevance are key.
• Generic messages without personalization or context: Sending the same message to all users, regardless of their history or precise location, drastically reduces effectiveness. AI-based personalization can achieve a 74% increase in engagement according to a Braze study cited by Amra & Elma.
• Bad physical location of devices that generates false positives: Placing Beacons in inappropriate locations can send erroneous or untimely notifications, frustrating the user. Make sure the range is properly calibrated for each zone.
• Don’t ask for Bluetooth/location permissions clearly: Users are reluctant to grant permissions if they don’t understand the benefit. Request permissions just before the feature is to be used and clearly explain why they are needed according to Android Developers.

Conclusion: Beacons as part of your omnichannel engagement stack

Beacon technology is a powerful tool for proximity marketing, capable of transforming customer engagement by delivering contextual and personalized interactions in the physical world. Its ability to connect online behavior with the in-store experience makes it an essential component of any modern omnichannel strategy. The market for Beacons is booming, with significant growth projections, underscoring its future relevance.

At Actualizatec, we understand that the key to success lies in the intelligent integration of these technologies. Combining Beacons with marketing automation and CRM platforms, along with data analytics through AI, will enable predictive personalization that will optimize every customer touch point. Investing in Beacons makes sense when you are looking to bridge the gap between your digital and physical channels, and are ready to deliver a truly unified and relevant user experience.

Key Points

• Beacons are BLE devices that enable indoor proximity marketing, with ranges up to 70 meters.
• There are three main protocols: iBeacon (Apple), Eddystone (Google) and AltBeacon (Open Source), each with specific compatibilities and uses.
• Successful use cases include physical retail (personalized offers), events (engagement) and tourism apps (contextual information).
• Implementation requires technical steps such as target definition, hardware selection, SDK integration and rigorous testing.
• Key metrics such as detection rate and attributed conversion are essential to measure the ROI of Beacon campaigns.
• Avoiding spam and personalizing messages are crucial for effectiveness, as well as requesting permissions in a clear and contextual manner.

What is a Beacon and what is it used for in mobile marketing?

A Beacon is a small device that emits Bluetooth Low Energy (BLE) signals detectable by nearby smartphones with a compatible application. Its function in mobile marketing is to enable contextual and personalized interactions through push notifications, such as sending offers or relevant information, to users in physical proximity to a business or point of interest.

What is the difference between Beacon and GPS to locate users?

GPS is a satellite-based geolocation technology, ideal for global positioning outdoors, but with low indoor accuracy and high battery consumption. Beacons, on the other hand, use BLE to detect proximity in enclosed or small spaces, offering high indoor accuracy with minimal power consumption, making them perfect for proximity marketing in stores or events.

Do I need a mobile app to use Beacons in my business?

Yes, a native mobile application with an integrated SDK (Software Development Kit) is generally required to take full advantage of Beacon technology. Although Eddystone allows URLs to be sent without an installed app (Physical Web), a native app offers greater control over interactions, personalization and data collection, essential for an effective strategy.

How much does it cost to implement Beacons in a store or event?

Implementation costs vary, but the hardware for standard BLE Beacons ranges from $20-40 per device, with slightly more expensive enterprise models. Add to this the development costs to integrate the SDK into the app and ongoing maintenance, although these devices have a long battery life (up to 10 years in optimized models).

What is the range of Beacons and how many do I need for my space?

Beacons have a configurable range ranging from 2 to 70 meters, although this can vary due to interferences such as walls or furniture. To calculate how many you need, consider that each Beacon covers a circular area; in a retail environment, 1 to 3 Beacons are typically used per 100-200 square meters, adjusting according to the desired accuracy and space distribution. You can see here the best examples of push notifications.

Do Beacons work with iPhone and Android equally?

Yes, Beacons can work with both iPhone and Android, but optimal compatibility depends on the protocol. iBeacon is optimized for iOS, while Eddystone is more flexible for Android. However, with a proper SDK in the app, most modern Beacons are compatible with both operating systems, enabling a cross-platform experience.

How do I prevent Beacon notifications from annoying users?

To avoid annoying users, it is crucial to limit the frequency of notifications and customize them as much as possible according to the user’s behavior and exact location. Always offer high-value content, provide clear options to mute or manage notifications and avoid sending generic mass messages.

What metrics should I measure to know if my Beacon strategy is working?

To evaluate the effectiveness of your Beacon strategy, you should measure the detection rate (how many app users are detected), the engagement rate (interaction with the notifications), the attributed conversion (sales or actions generated by the Beacons) and the dwell time (time spent in areas of interest).

Can I use Beacons without asking users for location permissions?

No, for Beacons to work properly, mobile applications require Bluetooth and, in many cases, user location permissions. It is essential to request these permissions in a clear and contextual way, explaining the benefit for the user, since without them the proximity functionality of Beacons will be limited or null. It will be interesting for you to see tools for push notifications.

What is the difference between Beacon and NFC for proximity marketing?

The main difference lies in range and interaction. Beacons have a range of up to 70 meters and detect proximity passively, sending notifications without the user doing anything. NFC (Near Field Communication) has a range of only a few centimeters and requires the user to “touch” or actively bring their device close to interact, making it ideal for payments or loyalty programs.

Important terms

Beacon: Small hardware device that uses Bluetooth Low Energy to transmit radio signals detectable by nearby smartphones, enabling contextual interactions based on proximity.

Bluetooth Low Energy (BLE): A version of Bluetooth designed for very low power consumption, ideal for devices that run on battery power for long periods of time.

iBeacon: Apple’s proprietary protocol for Beacons, optimized for iOS devices and compatible with UUID, Major and Minor identifiers. You can take advantage of it with mobile marketing strategies.

Eddystone: Google’s open source protocol for Beacons, which allows transmitting different types of data, including URLs (Physical Web) and telemetry.

AltBeacon: An open source Beacon protocol that offers an OS-independent alternative, facilitating interoperability between iOS and Android.

Proximity Marketing: Marketing strategy that uses technologies such as Beacons to send personalized messages to users based on their physical location or proximity to a point of interest.

SDK (Software Development Kit): A set of development tools that programmers use to create applications for a specific platform, in this case, to integrate the functionality of Beacons in mobile apps.

Dwell Time: A metric that measures the time a user spends in a specific area of interest, often used in proximity marketing to evaluate engagement.

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