Life is busy enough. Your kitchen should remember the groceries, so you don't have to.
Marsonya is the home's food memory — knowing what the pantry holds, warning before use-by dates, turning a list into a per-store buy plan, and showing the cheapest of Woolworths, Pak'nSave and New World for the week's shop. New Zealand households bin $1,364 of food a year (Love Food Hate Waste NZ, 2025 survey). Early access is open by waitlist.
Get early access
Scan a use-by date with your phone camera and Marsonya logs the item and the deadline together. Colour-coded shelves show what needs eating first, reminders arrive before food expires, and a waste report shows what got eaten versus binned. Alerts are scheduled on your phone, and urgent use-by warnings stay on even when quieter reminders are muted.
How to cut household food waste
Marsonya keeps a live list of your pantry, fridge and freezer, searchable from the supermarket aisle. Add items by barcode scan, by catalogue search across roughly 97,000 NZ grocery products, or by typing any name. A 3D pantry view lays your shelves out visually, with every product coloured by days of shelf life left.
Shelf-photo recognition is in beta: a photo of your shelf returns detected items with a search picker today, not automatic visual matches.
A pantry system you will keep using
Your shopping list becomes a per-store buy plan — these six items at Pak'nSave, these four at New World — then Marsonya hands you off to the retailer's own checkout. You always pay in the retailer's app or site. Marsonya never holds your card, and never places an order for you.
Splitting your shop without the hassle
Marsonya watches prices across Woolworths, Pak'nSave and New World — roughly 206 stores, refreshed nightly. Product pages show every store's price side by side. Deals are ranked against each product's own 30-day average, so a marked-down price still above recent normal stands out, and cheaper substitutes for anything on your list sit one tap away.
Where grocery money actually goes in NZ
Below is a real basket of everyday groceries, priced from Marsonya's own data at three named stores. The spread between the cheapest and dearest chain moves week by week and item by item — which is exactly why loyalty to a single store costs money. Marsonya runs the same comparison for your actual list, automatically.
| Item | Woolworths (national online pricing) | PAK'nSAVE Moorhouse | New World Durham Street |
|---|---|---|---|
| $5.50 | $6.55 | $6.95 | |
| $7.00 | $3.29 | $6.99 | |
| $5.80 | $5.49 | $6.69 | |
| $8.99 | $11.99 | $13.59 | |
| $3.79 | $2.79 | $3.79 | |
| $2.49 | $3.69 | $4.25 | |
| $10.50 | $10.49 | $11.65 | |
| $9.15 | $8.95 | $9.09 | |
| $4.49 | $2.99 | $4.49 | |
| $4.99 | $4.79 | $4.99 | |
| $3.00 | $3.75 | $4.35 | |
| $5.56 | $4.99 | $5.49 | |
| $4.30 | $5.09 | $5.75 | |
| $7.49 | $7.79 | $8.49 | |
| Basket total | $83.05 | $82.64 | $96.56 |
$13.92 between the cheapest and dearest chain on the full basket.
Prices observed 2 August 2026 from Woolworths (national online pricing), PAK'nSAVE Moorhouse and New World Durham Street, using the same data source the app reads. * = on special that day.
Month-by-month movement from the same data:the NZ grocery price index.
Untick items to price your own version of the basket.
Get the comparison for your own listScan barcodes and use-by dates with the phone camera, or search the NZ catalogue and add items by hand. Every item lands in your pantry with a date Marsonya can act on.
Colour-coded lists, a 3D pantry view and reminders surface food while there is still time to cook with what you own.
A shopping list becomes a per-store buy plan at the cheapest workable combination of stores, and Marsonya hands off to each retailer's own checkout — payment always happens with the retailer.
No. Marsonya stores your pantry and shopping data to run the app's features, and for nothing else. Waitlist addresses receive early-access news only, every email carries a one-click unsubscribe, and unsubscribing deletes the address from the list outright. Marsonya's plan for revenue is a paid app tier — never advertising, never selling data.
Fair question — most tracking apps get abandoned within weeks. Marsonya makes the phone do the boring part: barcode and expiry-date scanning replace typing, purchases from a buy-plan checkout can flow back into the pantry automatically, and reminders arrive on their own once notifications are allowed. Less manual upkeep means less to abandon.
Early access is free. Pricing beyond early access is not locked yet, and Marsonya will not invent a number just to fill a pricing table — no price appears anywhere on the site for exactly the same reason. Waitlist members hear real pricing first, before any public announcement.
No. Marsonya is an independent, family-built app from Christchurch, with no commercial relationship with Woolworths, Foodstuffs or any retailer. Prices come from the chains' public store listings, and the app recommends whichever store is genuinely cheapest for a given list. No retailer can pay for placement.
Marsonya is in field testing in Christchurch now. Early-access invitations go to the waitlist first, in signup order, ahead of the public app-store launch. No launch date is promised on the site — a date would be a guess, and guesses break trust.
Our pantry always looked full. Shelves of tins, pasta and spices — and every week the same questions anyway: do we already have peanut butter? Didn't we buy rice last week? Some weeks we bought food we already owned; some weeks we threw out food we'd forgotten. What started Marsonya was the realisation that the problem was never organisation. It was visibility.
Marsonya is built by a Christchurch family — Roman Naumov writes the code, and his wife runs the kitchen every feature has to survive. Anything that doesn't help on a busy Wednesday evening goes back to be redesigned. In most households one person quietly carries the kitchen in their head: what's in stock, what needs using, what this week will cost. Marsonya exists to carry part of that instead.
New Zealand grocery retail is concentrated — Consumer NZ put roughly 82% of the market with two groups in June 2026. Regulation moves on a scale of years; a household budget resets every week. Marsonya is a consumer-side tool for the meantime, with no ad-tech and a privacy-first build: loyalty cards are encrypted on the phone before anything is sent, retailer logins never leave the device, and the app keeps working offline. A field-test build is running in Christchurch right now. Life is busy enough. Your kitchen should remember the groceries, so you don't have to.
Early access opens ahead of the public app-store release, and the waitlist decides the order.
Full detail on what happens to your address: the privacy note.