Enter your household details and get an instant grade against the UK average.
Take a photo of any supermarket receipt — point your camera at the items list and Supermonster reads every item, price, and discount in seconds using AI.

See which items went up or down since your last shop, set weekly or monthly budget goals, and get a heads-up when you're close to the limit.

Link with your partner or family. Shared shopping lists, combined spending view, and household budgets — all synced in real time.

Create shared lists with your household. Supermonster suggests your regular items based on past shops and tracks what you've checked off in real time.

A community-sourced view of how UK supermarket prices are moving — which items are quietly going up, and where they're cheaper. Built from anonymised shop data from Supermonster users.
We're building a community-sourced view of which items are going up — and where they're quietly cheaper. Coming soon.
Tips and data to help you spend smarter at the supermarket.
What British households actually spend each week, broken down by size.
Read →Practical changes that save real money — not the same old generic tips.
Read →We compared 20 items across the big three. The gap might surprise you.
Read →Supermonster is a shopping tracker for UK households. Take a photo of any supermarket receipt to track price changes on the items you buy regularly, set weekly budgets, and share shopping lists with your partner or family.
Take a photo of the items list on any UK supermarket receipt (avoid the barcode at the bottom). Our AI reads every item name, price, and discount automatically — it takes just a few seconds.
Yes — Supermonster is free, with 3 receipt photos every month. Every feature (price tracking, spending insights, nutrition score, household sharing, shopping lists) is included on the free tier. Supermonster Plus (£1.99/month or £14.99/year) unlocks unlimited receipt photos and supports independent UK app development.
Your personal data is never shared. You can optionally opt in to share anonymised shopping data to help build better price insights for everyone, but this is entirely your choice and can be changed anytime in Settings.