Money Saving Expert Martin Lewis has tipped off shoppers about a handy comparison tool that is used to contrast the different prices of the same product at different supermarkets.
The bargain expert shared the tip on his website, and tells customers they can "speedily find the cheapest supermarket for your items". The Trolley app is the tool for bargain-hunters, and it works in a very simple way.
For more information, read on below for further details.
