Last updated July 2026
Kepie exists to help New Zealand families spend less and eat well. That only works if the prices we show you are honest. Here's exactly how we do it — every number we publish, you can check.
We read the actual listed prices from PAK'nSAVE, Woolworths and New World— the same prices you see on the shelf. We don't model, guess or average prices across regions. If a product isn't priced at a store, we say so rather than invent a number.
Supermarket prices and specials change constantly. We refresh our prices weekly, so the week you plan is priced off that week's real specials. Prices can still move between our refresh and your shop — the price at the checkout is always the final word.
When a product is on special, the headline price we show is the current pay-price — whatyou'd actually be charged today, special included. When we show a saving, it's the difference between the regular price and the current price. A saving of $0 simply means the item isn't on special.
Pack sizes differ between stores and brands, so comparing sticker prices can mislead. Where we compare value we normalise to a common basis — price per 100g, per 100ml, or per unit — never raw pack price. When we say one store is cheaper for your week, it's the same dinners costed at each store.
A dinner's cost is the cost of the ingredients it uses, divided by how many it serves. Your weekly total is the sum of the dinners you chose, scaled to how many people you're feeding. Where a recipe only needs part of a pack, we still count the pack you have to buy — but leftovers carry forward and count toward next week.
We don't take a cut from any supermarket, and no store can pay to look cheaper. When one store is cheaper for your week, we say so plainly. Kepie is free — no subscriptions, no paid tiers.