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Why use Trolley Checker?

mySupermarket's Trolley Checker saves you £££s and calories every time you shop. There are two parts to the Trolley Checker:

Price Checker

Save money by replacing items in your trolley with almost identical items which are equal in quality but lower in price. You don't need to find Special Offers, they find you! Learn more

Health Checker

Once you've filled your trolley, the Health Checker examines the contents and suggests that you swap some items for similar products with fewer calories, or lower fat, saturated fat, salt or sugar. Learn more

Switching Supermarkets

You can switch supermarket by sending the entire contents of your trolley to another supermarket. Learn more



On left side of the Trolley Checker page we show you which supermarket you shopped from and your total, together with the cost and details of your delivery if you booked your slot.

You can see the cost of your trolley in the other supermarkets in the left-sided tabs and if you wish to switch supermarket, you can click on one of the other tabs. If you switch supermarket, click on 'Review Equivalents' to see the products that weren't available in that supermarket and needed to be switched with similar alternatives. We make it easy by finding the closest match for you.


Some of the items you selected may not be available in the Alternative supermarket. They might be:
  • Out of stock
  • Not carried by the Alternative Supermarket, such as own brand items.

The centre panel, titled "Check your Trolley" gives you the option of swapping some of your products with the Price Checker or Health Checker.

The Price Checker shows you in red how much money you can save if you agree to all of the money saving swaps. Click on the red button to view the swaps.

The Health Checker shows you in red how many calories you can save, as well as a list of how much fat, saturated fat, sugar and salt that can be saved. Click on the red button to view the swaps.

Our unique Trolley Checker system ensures that you will always save £££s and calories on your supermarket shop at the four competing supermarkets.