Saving Wiz’s apps

Grocery Cost Calculator

Build a grocery list and estimate the total cost before shopping.

Build the list, see the total before leaving the house. It prices each item at the shop being used, so the number at the till is not a surprise and the list can be adjusted while it still can be.

What a v1 does5 features
  • A running total as the list is built
  • Prices for the specific store being shopped at
  • Swap suggestions that keep the meal and cut the cost
  • Quantities and pack sizes handled properly
  • The list usable in-store, ticking off as you go

The market

Proven marketGrocery savings
$187Ma year at Ibotta, from 54M registered users

Ibotta's direct-to-consumer revenue fell 22% year on year, so this category is proven and contracting at the same time. Members save around $250 a year, which is the figure to price $3 a month against.

Where these numbers come from
CompanyEarnsReachSource
Ibotta$187M D2C revenue, FY2025 (down 22%)54M+ registered · 18.2M redeemersPublic filings
Ibotta~$250–261 a year~461k downloads a monthCompany-stated
Upside~$254/yr average saving50,000+ merchant locationsCompany-stated

Why this audience

This audience shops deliberately and is trying to hold a weekly number they cannot see until the till. Groceries are the one recurring cost they can actually control. Knowing the total before leaving the house is the single most useful thing to give somebody already running that discipline.

Before it can launch

  • Grocery price data through retailer APIs or a licensed feed; scraping store sites breaches their terms and breaks weekly

What it earns

Drag me Every figure recalculates as you go.

Paying users1,000

0.018% of 5.5M followers · capped at 50,000

Price per month$3

Opens on the price this idea was costed at, $3.

1,000 paying — 0.018% of 5.5M followers — × $3 a month = $3,000 a month

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Fifty thousand paying users is the ceiling every one of these pages is drawn against, not a forecast. It opens at a thousand, the bottom of the range, so the first figures you see are the modest ones. What the cap buys is comparability: the same range on every app, and the percentage of the audience it takes as the number that moves.

Is this the one for your audience?

We fund it, build it, and run it. You bring the audience and take a share of the revenue. Nothing to pay and nothing to build.

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