Best Supermarket Comparison Sites UK: The Real Money Savers for 2026

Your grocery bill is likely the biggest flexible expense in your budget, and with the UK ranking as the 10th most expensive country in Europe for 2025, that flexibility is disappearing fast. The old advice was simple: “shop around.” But that is impossible when prices change daily and the “cheapest” supermarket fluctuates depending on your specific basket.

Here is the hard truth: Most of the famous comparison sites you used three years ago are dead. Priceable? Shut down. MySupermarket? Long gone. To survive the checkout line in 2026, you need tools that are active right now, not ghosts of the internet past.

The State of UK Grocery Pricing (Late 2025)

Before we download apps, let’s look at the battlefield. As of December 2025, the gap between the budget retailers and the premium aisles is widening, but not always where you expect.

• The Cheapest: Aldi retains the crown. A basket of 70 items cost £121.22 in November 2025, narrowly beating Lidl (£122.40).
• The Big Shop Winner: If you are filling a trolley with 183+ items, Asda has been the cheapest mainstream supermarket for 11 months running.
• The Premium Tax: Waitrose remains the most expensive, with that same small basket costing nearly £45 more than at Aldi.

To capture these savings, you need the right data. We have curated the list down to the few platforms that actually function today.

The Only 3 Tools You Need in 2026

1. Trolley.co.uk (The Heavyweight Champion)

If you only bookmark one site, make it this one. Trolley.co.uk has effectively filled the void left by MySupermarket. It is currently the most robust tool for checking prices across 16+ retailers, including the big names like Tesco, Asda, Sainsbury’s, and Ocado, as well as discount heroes like B&M and Home Bargains.

The Practitioner’s Tip: Don’t just look at the shelf price. Use their “Price History” feature. Supermarkets often hike prices just before a “sale” to make the discount look bigger. Trolley exposes this trick instantly.

• Retailers: Includes Aldi, Boots, Iceland, Morrisons, Co op, and they are actively working on full integration for Amazon and Lidl.
• Killer Feature: Set price alerts on your specific essentials (like coffee or detergent) so you only buy when they hit their lowest annual price.

2. Latest Deals App (Best for Mobile)

For those who shop physically in store, the Latest Deals app is your pocket weapon. Updated in mid December 2025, this app focuses on speed.

It shines with its Barcode Scanner. Standing in Tesco and wondering if the pasta sauce is cheaper at Asda? Scan it. The app immediately pulls up competitive pricing from Co op, Iceland, Morrisons, Waitrose, and others.

Why use it: It moves beyond just data comparisons and integrates community found bargains. It’s less about “analysis” and more about “snagging a deal right now.”

3. MySupermarket Compare (The Web Alternative)

MySupermarket Compare is a solid backup if you prefer desktop browsing. It tracks the major fourAsda, Morrisons, Sainsbury’s, and Tescoplus Ocado, Waitrose, and Aldi.

While the interface is simpler than Trolley, it is reliable for building a specific basket to see the total cost difference between retailers. It is active and recording traffic as of late 2025, making it a verified survivor in a tough market.

Tools You Should Ignore (The Graveyard)

To save you time, delete bookmarks for the following sites. They either don’t exist or no longer perform the function you need:

• Priceable.co.uk: As of late 2024, this site has shut down. Do not waste time looking for it.
• Supermarket.co.uk: While the website is online, it is no longer a functional grocery price comparison tool. It now hosts directories for baby products but lacks the live food pricing engine it once had.

The “Macro” View: Which? Reports

Finally, we have Which?. This isn’t a tool for your daily shop, but it is essential for your monthly strategy. Their monthly analysis of thousands of products reveals the trends that single apps miss.

The 2025 Insight: If you are loyal to one supermarket, you are likely overpaying. The data shows that switching your big weekly shop from Waitrose to Aldi could save you over £45 per weekthat is over £2,300 a year back in your pocket.

Smart Shopping Beyond the Supermarket

Saving money on food is the first step, but smart shoppers apply the same logic to their wardrobe. If you are looking to cut costs on clothing in 2026, don’t limit yourself to the local High Street.

For example, platforms like Zalando offer massive comparison options across 17 European countries, often beating UK high street prices. Similarly, knowing where to look for cheap clothes shopping sites in Germany can open up delivery options that are surprisingly affordable.

If you prefer unique finds over mass market goods, consider exploring Ukrainian fashion brands, which have become incredibly competitive in price while offering high-quality design work.