Last updated 21/08/2026
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, so you can check every number we publish.
Our prices come from the online shops of the three big supermarket banners: PAK'nSAVE, Woolworths and New World. We collect each banner's listed online prices, and we manually check and enter the product data so a price is matched to the right product before it reaches the app. We don't model, guess or average prices. If a product isn't priced at a banner, we say so rather than invent a number.
These are banner prices, not individual store prices.Each banner's own stores can vary a little, so what you see in store might sometimes differ slightly from the app. The date we last read the prices is shown in the app.
Supermarket prices change constantly, including this week's specials. We refresh our prices weekly, so the week you plan is priced off the banners' current online prices, with the read date shown. Prices can still move between our refresh and your shop; the price at the checkout is always the final word.
The headline price we show is always the current pay-price, the amount you'd actually be charged online today. When we show a saving, it's the difference between the regular price and the current price. A saving of $0 simply means the price hasn't dropped from its regular level.
Pack sizes differ between banners 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 banner is cheaper for your week, it's the same dinners costed at each banner.
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. Leftovers carry forward and count toward next week.
We don't take a cut from any supermarket, and nobody can pay to look cheaper. When one banner is cheaper for your week, we say so plainly. Kepie is free: no subscriptions, no paid tiers.