10 high tech ways supermarkets are becoming snooper-markets

How your buying and browsing habits are monitored

10 ways shops are tracking you

How much do you know about what a store does to track you? In the past few years, technology has advanced to the point where sensors know when you are standing in front of the dress shirt aisle and can feed you a relative ad. When you move, they can track the direction of your phone.

Fortunately, most of the tech is "opt-in" and avoids the trap of privacy. In most cases, you agree to the terms when you download the app - although you might be surprised to learn how much you're giving away, and how accurate this monitoring can be.

So read on for 10 ways that the stores your shop at are tracking you...

1. Swirl

10 ways shops are tracking you
Swirl lets retailers know when you visit the store

The Swirl app tells retailers who's visiting their stores, and can even send discounts when someone walks in. Accurate within about 90 metres, this app uses Bluetooth Low Energy sensors installed around the store. The small battery-powered sensors transmit a signal to an app on the phone (for now, iPhone only - Android phones do not support Bluetooth Low Energy yet).

2. PointInside

10 ways shops are tracking you
PointInside lets shops create a dedicated store guide

This service is unique in that it is not a data collection tool or an app. Instead, it's more like a solution provider or aggregator, and stores can produces their own branded apps using PointInside technology to display store maps, product info, and discounts.

The service works with disparate location tech like Wi-Fi fingerprinting, Bluetooth and the phone's accelerometer. For tracking, it enables the "blue dot" of customer awareness. Customers can see where they are in the store, and use a waypoint to find a specific item.

3. ByteLight

10 ways shops are tracking you
ByteLight can target offers depending on what you're looking at instore

Currently in closed pilots, this technology doesn't rely on GPS or mapping data. Instead, the company works with LED lighting companies to install their software. The lights transmit a specific frequency, which can be read by a branded app in the store.

Stores don't have to invest in sensors or trick customers by using Wi-Fi fingerprinting techniques. The technology is accurate within one metre, so when a customer stands in front of the shirt aisle, a store can send a discount on the matching trousers. First public tests will debut this year.

4. IndoorAtlas

10 ways shops are tracking you
Centimetre-accurate tracking means IndoorAtlas gives shops extraordinary detail on what you're doing

As if using the lights in the store is not already advanced enough, IndoorAtlas reads the slight fluctuations in the magnetic field of the compass in a smartphone. That means, when the tech debuts this year, stores can track the location within a few centimetres. When you pick up a tool at a hardware store, the app might recognize you are in that section and send a deal on nails.

5. Shopkick

10 ways shops are tracking you
Shopkick turns consumerism into a game

Shopkick (iOS, Android) might not be as accurate in locating and tracking customers, but it is novel. The app, which has a heavy focus on gaining "kicks" in a store to earn gift cards, reads a unique sonic pulse at the entrance of a store.

When you walk in, you start the app. Within seconds, the app recognizes where you are. The advantage to the store is that they don't have to rely on GPS or Wi-Fi fingerprinting. For the consumer, it's a gamification of the shopping experience.

6. Swipely

10 ways shops are tracking you
Footfall data from Swipely tells shops who's coming back and who's spending the most

Tracking isn't always about knowing where your customers go in a store. With Swipely, it's about tracking and analysing sales. The merchant kit includes mobile apps and a credit card reader.