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Marsonya
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Everything your pantry needs

Less waste, track, compare, and save — all from one app built for Kiwi households.

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 accessSee how it works
Marsonya pantry home screen showing item counts, an expiring-soon list and a price comparison

App screen from the current build. Prices and products shown are illustrative, not live prices.

  • For Kiwi families
  • For everyday life
  • For a better tomorrow

The problem, in three numbers

of food thrown away per New Zealand household per year
$1,364of food thrown away per New Zealand household per yearLove Food Hate Waste NZ, reporting the 2025 Rabobank–KiwiHarvest survey, 2025
of the NZ grocery market held by two supermarket groups
82%of the NZ grocery market held by two supermarket groupsConsumer NZ report, 2026
for a fixed 16-item basket at Pak'nSave — about $5 a week under the New World and Woolworths loyalty-member average, with fresh meat and produce excluded
$84.38for a fixed 16-item basket at Pak'nSave — about $5 a week under the New World and Woolworths loyalty-member average, with fresh meat and produce excludedConsumer NZ basket study, 2026

Marsonya watches the dates, so nothing expires unseen

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
Expiry scanner reading a printed best-before date on a food label, with the recognised date ready to add

App screen from the current build. Prices and products shown are illustrative, not live prices.

Marsonya knows what your home already has

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. Separate tabs keep each storage place distinct, and the whole list stays readable offline, so a shelf checked in the aisle costs no data.

A pantry system you will keep using
Pantry home screen listing stock counts and items ordered by days to expiry

App screen from the current build. Prices and products shown are illustrative, not live prices.

Marsonya turns the list into a plan — you just shop

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
Buy Plan screen splitting a shopping list between two stores with a total for each

App screen from the current build. Prices and products shown are illustrative, not live prices.

Marsonya finds where this week's list is cheapest

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
Product page comparing one grocery item priced at Woolworths, Pak'nSave and New World stores

App screen from the current build. Prices and products shown are illustrative, not live prices.

How Marsonya knows: real prices from real stores, today

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.

Basket prices at Woolworths (national online pricing), PAK'nSAVE Moorhouse and New World Durham Street
ItemWoolworths (national online pricing)PAK'nSAVE MoorhouseNew 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.

Get the comparison for your own list

How Marsonya works

A loop, not a checklist. Each step sets up the next, so the pantry, the shopping list and the expiry dates stay in step.

  1. See what needs usingTrack your pantry — what is in stock, and what needs eating first.
  2. Shop the splitA shopping list becomes a per-store buy plan, and what you buy lands back in the pantry.
  3. Scan the datesScan use-by dates as the shopping goes away, and Marsonya warns you in time.

One loop, not three chores

What you buy lands back in the pantry, what the pantry runs low on becomes the next list, and the dates you scan drive the reminders.

Barcode scanning, on the side. Off the loop but always there — scan a barcode in the aisle to check you are picking the right product.

Fair questions

What happens to my data? Is any of it sold?

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.

Will I actually keep using a pantry app?

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.

How much will Marsonya cost?

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.

Is Marsonya connected to the supermarkets?

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.

When does early access open?

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.

Built in Christchurch, by a family sick of throwing food out

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, a data scientist, writes the code, and his wife Marina 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. 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.

Tell us what would make this useful

Marsonya is built by one family, and every feature so far came from someone describing a real kitchen problem. If something here misses the mark, or the thing you actually need is missing, say so.

What is this about?

Your address is used to reply to this message and nothing else — never added to a mailing list without you asking.

Get in before launch

Early access opens ahead of the public app-store release, and the waitlist decides the order.

Marsonya ([email protected]) will email you when Marsonya early access opens — that is the only reason we use this address. You can unsubscribe with one click from the first email we send you.

  • You get: an invitation as soon as a spot opens, and a direct line to shape what gets built next.
  • You do not get: spam, a shared or sold address, or a fight to leave — one click unsubscribes and deletes your address.

Full detail on what happens to your address: the privacy note.