Set a cap.
Stay under it.

The list that learns what you pay — so you notice when prices creep, and get out under budget every week.

Download on theApp Store

iPhone · one-time purchase · no subscription

CartCap iPhone screenshot showing a Costco list with a $150.81 of $200 cap

In the cart

$38.50of $200

$161.50 left

WEEK AFTER WEEK

It gets smarter every trip.

TRIP ONE

Set a cap. Feel the trip.

Give the trip one number. Add prices as you cart and watch the vessel fill — the total rides your Dynamic Island, no unlocking.

$142.50
71%

TRIP TWO

Shop it again.

One tap rebuilds last week's list. Prices you've paid fill themselves in, and the list sorts into your own walking order through the store.

milk

Last time: $3.99

~$3.99

TRIP TEN

You notice what stores hope you won't.

Receipts get tossed. Prices drift 30 cents at a time. CartCap keeps your own record and says it plainly the moment it changes.

PRICE CHECK

milk
$3.99$4.79+$0.80
coffee
$18.99$16.99−$2.00

From your own prices — nobody else's.

Informs. Never scolds. Copilot, not a nanny.

Free

The full budget loop, Live Activity, one active list.

CartCap Pro

$4.99 once

  • Unlimited lists
  • Price memory, projections & Price Check
  • Smart sort (your walking order)
  • Trip history & insights
  • Home Screen widgets

Buy once. Keep forever. No subscription. No ads. No account.

On this phone

Everything CartCap knows lives on your phone. No account, no analytics, no servers. Optional sync uses your own private iCloud — dgtol never sees your data, because there's nothing to see it with.

Read the full privacy note →

Try it on your next trip.