--- title: "Is there a website that compares grocery prices?" url: https://isthereathing.com/a-website-that-compares-grocery-prices/ answer: "yes" summary: "Yes, in the UK: Trolley, MyGroceryPal and CompareTheTrolley compare supermarket prices free. Which? publishes a monthly cheapest-supermarket comparison, but says its totals cannot be compared between months." category: "Money & subscriptions" published: 2026-10-02 updated: 2026-10-02 author: "Jack Stovell" publisher: "Adapt Progress Evolve Limited" language: en-GB --- # Is there a website that compares grocery prices? **Answer: yes.** Yes, in the UK: Trolley, MyGroceryPal and CompareTheTrolley compare supermarket prices free. Which? publishes a monthly cheapest-supermarket comparison, but says its totals cannot be compared between months. (Source: [Which?: supermarket price comparison](https://www.which.co.uk/reviews/supermarkets/article/supermarket-price-comparison-aPpYp9j1MFin)) Yes, in the UK. Trolley, MyGroceryPal and CompareTheTrolley will line up supermarket prices for you at no charge, and Which? publishes a monthly comparison of which supermarket was cheapest, though it says its totals can't be compared between months. They answer slightly different questions, so it's worth knowing which is which. ## The shortlist ### Trolley UK grocery price comparison site with deals, price comparisons across stores and shopping lists. - Link: https://www.trolley.co.uk/ - Free tier: yes. Free to use per its pages; its About page says it is powered by sponsors and will always be free (that page may be dated). - Paid from: not checked (free to use, per the vendor) - Best at: Comparing prices across many shops: its home page lists Asda, Sainsbury's, Morrisons, Co-op, Iceland, Tesco and Waitrose, plus Boots, Superdrug, Amazon and eBay. - The catch: Its home page does not explain how prices are collected or how often they update, so check the shop's own price before buying. - Platforms: web, mobile app - Source: [Trolley home page](https://www.trolley.co.uk/) ### MyGroceryPal Tracks prices across 13 UK retailers, with shopping lists, price alerts and price history. - Link: https://mygrocerypal.co.uk/ - Free tier: yes. Free on web, app and Chrome extension, with no premium tier mentioned on the page. - Paid from: not checked (free, per the vendor) - Best at: Price history and alerts: it says you can check price history to spot genuine discounts and set alerts for brands or keywords. - The catch: It is ad and commission funded, so a small number of ads may appear in the app and on the website, and it earns commission from retailer clicks. - Platforms: web, ios, android, chrome - Source: [MyGroceryPal](https://mygrocerypal.co.uk/) ### CompareTheTrolley Basket comparison: enter a shopping list and it matches items across supermarkets, shows totals and suggests cheaper alternatives. - Link: https://www.comparethetrolley.co.uk/ - Free tier: yes. No pricing shown on the page, so it appears free; the vendor does not say so explicitly. - Paid from: not checked (no price shown on the page) - Best at: Comparing a whole basket including loyalty prices across Tesco, Sainsbury's, Aldi, Asda and Morrisons. - The catch: It says prices may vary from live store pricing and availability, its price data showed collection dates of 2 August to 11 September 2026, and it does not say who operates it. - Platforms: web - Source: [CompareTheTrolley](https://www.comparethetrolley.co.uk/) ### Which? cheapest supermarket tracker A monthly Which? comparison of what a basket costs at each supermarket, using prices tracked daily. - Link: https://www.which.co.uk/reviews/supermarkets/article/supermarket-price-comparison-aPpYp9j1MFin - Free tier: yes. The page showed no paywall or membership requirement when we read it. - Paid from: not checked (no price shown on the page) - Best at: Showing which supermarket was cheapest for the month: Aldi in August 2026 at £159.36 for 92 items, with Lidl at £161.10. - The catch: It is a monthly article, not a tool for your own basket. Which? says the products vary month to month, so totals are not comparable between months or years, and it cannot include points or personalised discounts. - Platforms: web - Source: [Which?: supermarket price comparison](https://www.which.co.uk/reviews/supermarkets/article/supermarket-price-comparison-aPpYp9j1MFin) ## How they compare Which one is worth your time depends on what you're trying to do, so here they are by need. ### If you want it free Cost barely separates them. MyGroceryPal is free on web, app and Chrome extension, and its page mentions no premium tier. Trolley says it's free too, and its About page says it's powered by sponsors and will always be free (though that page may be dated). CompareTheTrolley shows no pricing at all, so it appears free, but it never says so outright. The Which? article showed no paywall when we read it. What you give up is attention, mostly: MyGroceryPal carries a small number of ads, and earns commission when you click through to a retailer. ### If you want to compare across many shops Trolley. Its home page lists Asda, Sainsbury's, Morrisons, Co-op, Iceland, Tesco and Waitrose, plus Boots, Superdrug, Amazon and eBay. That's handy if your shop isn't only a supermarket run. The cost is a gap in explanation: the home page doesn't say how prices are collected, or how often they update. You're trusting it without knowing where the numbers come from, so check the shop's own price before buying. ### If you want price history and alerts MyGroceryPal. It says you can check price history to spot genuine discounts, and set alerts for brands or keywords. It tracks 13 UK retailers, with shopping lists too. What you give up is an ad-free experience, since it's ad and commission funded, so a small number of ads may appear in the app and on the website. ### If you want to price a whole basket CompareTheTrolley. You enter a shopping list and it matches items across supermarkets, shows totals, and suggests cheaper alternatives. It also covers loyalty prices, across Tesco, Sainsbury's, Aldi, Asda and Morrisons. That's aimed at the question "what would my actual shop cost?" The catch is freshness. It says prices may vary from live store pricing and availability, its price data showed collection dates of 2 August to 11 September 2026, and it doesn't say who operates it. So treat the total as a guide, not a promise. ### If you want to know which supermarket was cheapest last month The Which? cheapest supermarket tracker. It showed Aldi cheapest in August 2026 at £159.36 for 92 items, with Lidl at £161.10, using prices tracked daily. But it's a monthly article, not a tool for your own basket. And Which? says the products vary month to month, so totals can't be compared between months or years. You can't use it to spot a trend. It tells you who was cheapest in one month, and that's all. ### When paying is worth it Barely, as far as we can tell. There's little to pay for here: MyGroceryPal is free with no premium tier mentioned, and the other pages show no price either. If something asks for your card, ask what you're getting that these don't give you. ## What to watch for One blind spot is loyalty pricing. Which? says it cannot include points or personalised discounts, and it shows Sainsbury's Nectar and Tesco Clubcard prices separately from non-member prices. If you shop with a card, the headline cheapest supermarket might not be cheapest for you. Trolley's page doesn't explain how prices are collected, so check the shop's own price before buying. Not because anything is wrong, just because nothing tells you it's right. And CompareTheTrolley says prices may vary from live store pricing and availability. The habit is the same across all of them: use the comparison to narrow things down, then confirm on the shop's own site or at the till. ## How we checked On 2026-10-02 we read the home pages of Trolley, MyGroceryPal and CompareTheTrolley, Trolley's About page (which may be dated), Which?'s supermarket price comparison article, and gov.uk's government response on unit pricing. Allsupers refused our fetch, so it isn't listed. No app store listings were read, and nothing was hands-on tested. ## If none of these fit For per-unit comparison in store, look at the unit price on the shelf label. The government said on 24 January 2024 that it would mandate consistent use of unit pricing measures, while keeping the exemption for small shops. Otherwise check each supermarket's own site, including loyalty prices such as Nectar and Clubcard, which Which? shows separately. Nothing we read covers the US. ## Also typed as - is there an app that can compare grocery prices - is there an app that compares grocery prices ## Related questions - [Is there an app that finds all your subscriptions?](https://isthereathing.com/an-app-that-finds-all-your-subscriptions/) - [Is there an app that blocks spam calls?](https://isthereathing.com/an-app-that-blocks-spam-calls/) ## Sources - [Trolley home page](https://www.trolley.co.uk/) (checked 2026-10-02) - [Trolley About page](https://www.trolley.co.uk/about) (checked 2026-10-02) - [MyGroceryPal](https://mygrocerypal.co.uk/) (checked 2026-10-02) - [CompareTheTrolley](https://www.comparethetrolley.co.uk/) (checked 2026-10-02) - [Which?: supermarket price comparison](https://www.which.co.uk/reviews/supermarkets/article/supermarket-price-comparison-aPpYp9j1MFin) (checked 2026-10-02) - [GOV.UK: government response on price transparency and product information](https://gov.uk/government/consultations/smarter-regulation-improving-price-transparency-and-product-information-for-consumers/outcome/government-response-to-consultation-on-smarter-regulation-improving-consumer-price-transparency-and-product-information-for-consumers) (checked 2026-10-02) ## Questions people ask ### Which supermarket was cheapest in August 2026 according to Which? Aldi, at £159.36 for 92 items, with Lidl second at £161.10. Sainsbury's Nectar and Tesco Clubcard prices were shown separately from non-member prices. ### How does Which? check supermarket prices? It says it tracks the prices of up to 200 branded and own-label products every day over a month, using data from an independent price comparison company, and fieldworkers where a store has no online prices. ### What is unit pricing and is it changing? Unit pricing shows the cost per standard measure so products can be compared. The government said on 24 January 2024 that it would mandate consistent use of unit pricing measures and keep the small shops exemption. ### Are these sites free? Trolley, MyGroceryPal and CompareTheTrolley appear free to use. MyGroceryPal says it earns commission from retailer clicks and may show ads.