GroceryWise

Methodology

GroceryWise is a free Australian web app that compares this week's specials across Coles, Woolworths and Aldi. This page explains exactly where our data comes from, how often it refreshes, and what we do and don't do with it.

How we source data

We run one data importer per retailer (Coles, Woolworths, Aldi), reading each retailer's publicly published weekly catalogue. The importers are scheduled on Apify and run early Wednesday morning AEST — the standard window for new weekly catalogues to go live in Australia. Aldi runs a second refresh on Saturdays to capture the mid-week Special Buys drop.

Each importer writes directly to our database. The website reads from the same database, so what you see on a retailer page is what the retailer is publicly advertising for that catalogue window.

What GroceryWise does not do

  • We do not manually curate, re-rank, or hand-pick specials. Every product visible on a retailer page came directly from that retailer's catalogue.
  • We do not give personal recommendations. There is no account, no shopping history, no profile-based suggestions.
  • We do not rank products by affiliate payout. Outbound product links go straight to the retailer with no rewriting and no commission in the chain.

Pricing accuracy

All prices are in Australian Dollars (AUD), sourced from the retailer's published catalogue. Catalogue prices can change at any time, and in-store pricing can differ from the published catalogue. Always verify the price with the retailer before purchase.

Update cadence per retailer

  • Coles: weekly, Wednesday morning AEST.
  • Woolworths: weekly, Wednesday morning AEST.
  • Aldi:twice-weekly — Wednesday and Saturday mornings AEST — to capture both the weekly Super Savers and the Wed/Sat Special Buys drops.

Corrections and contact

Spotted a price that looks wrong, or a special that should be on the site but isn't? Drop a note in the GroceryWise Facebook community and we'll take a look on the next refresh.