Australian grocery is a concentrated market where two chains set the tone and a national conversation about price transparency has made grocery data mainstream. For app builders, brands and analysts, the practical layer is public online pricing: catalog, shelf and special prices, unit pricing, and availability — trackable per postcode across Coles, Woolworths, Aldi, IGA and Dan Murphy's.
Why Australian grocery data demand exploded
Short para. If citing the ACCC supermarket inquiry / price-transparency debate, verify with a fresh search and cite a Tier-1/2 source (ACCC, ABC News, AFR). Otherwise keep qualitative: sustained cost-of-living attention has made price-comparison apps a visible category — several of the founders building them talk to us monthly.
What's trackable per retailer
| Signal | Coles | Woolworths | Aldi | IGA | Dan Murphy's |
|---|---|---|---|---|---|
| Online shelf price | ✓ | ✓ | ✓ | ✓ | ✓ |
| Specials / promos | ✓ | ✓ | ✓ | ✓ | ✓ |
| Unit pricing | ✓ | ✓ | ✓ | ✓ | ✓ |
| Availability by postcode | ✓ | ✓ | [verify] | ✓ | ✓ |
| Catalog / flyer offers | ✓ | ✓ | ✓ | ✓ | — |
A note on unit pricing
Australia's mandatory unit-pricing display is a gift to comparison apps — normalized per-100g and per-litre comparisons are natively available rather than derived. Use them.
Who uses this data
Price-comparison & meal-planning apps
Postcode-level basket comparisons across the majors. This is our single most common Australian inquiry.
FMCG suppliers
Shelf price, promo depth and catalog presence for their SKUs against rivals across both majors and discounters.
Analysts & media
Basket indices and specials-cycle analysis.
The specials cycle: Australia's tracking quirk
Weekly catalog specials drive a large share of Australian grocery purchasing, and the Wednesday catalog rotation means data freshness has a hard weekly deadline: a feed refreshed Tuesday is wrong by Wednesday morning.
Practical spec: full-catalog refresh aligned to the rotation + daily price checks on tracked SKUs.
Questions
Frequently Asked Questions
Yes. Both publish location-based online pricing, so postcode-level collection reflects what a shopper in that area sees at the time of collection.
Yes, within what Aldi publishes online — Special Buys and its listed grocery range. The limitation stated plainly: Aldi's in-store-only range isn't publicly listed, and no provider can honestly claim full coverage of it.
Align the full refresh to the catalog cycle on Wednesdays and run daily deltas on tracked SKUs. This is the pattern our Australian app clients converge on independently.
We collect only publicly displayed pricing, with no logins, under privacy-aligned processes — and unit-pricing display is itself a regulatory transparency measure. Commercial apps operate on this data with their own legal review, which we'd always recommend running.
