Brand owners can now add a Slingshot button - which enables shoppers to add products directly to their online supermarket basket with one click - to their online advertising for free.

Slingshot has also launched a content management system whereby advertisers can track data including customer location, click-throughs and purchase rates for a premium.

“We are redefining the age-old brand, retailer and consumer relationship by giving any manufacturer control of the sales process - as well as making it easier for consumers to shop,” said Slingshot managing director Mitch Vidler.

“We have also created an intuitive, free platform that gives brands the ability to drive direct sales from their marketing and track the ROI of each activity. Brands are able to identify the direct link between their communications and sales, a level of insight never previously available.”

PepsiCo, Kellogg’s, AB InBev, Innocent, Magners and Danone have all started incorporating Slingshot into their marketing activity. Last year, more than 10,000 products were added to baskets using Slingshot.

Print ads can also carry a Slingshot QR code for scanning.