CartGoblinYour grocery list, at the cheapest store in town.
CartGoblin prices your whole list across Denver-area stores, counts delivery fees, memberships and card rewards, and tells you where to shop. One store, or the best pair.
Private beta for households in the Denver metro area.
Cheapest plan for your list
Walmart $13.12
3 of 3 items, delivery fee included, card rewards applied
- Milk, 1 gallon$2.94
- Eggs, 12 large$2.31
- Bananas, 6$1.20
- Delivery$6.99
- Card rewards-$0.32
How it works
No coupons to clip and no tabs to juggle. Write the list the way you normally would.
Paste or snap your list
Type it, paste it, or take a photo of the handwritten one on the fridge. "2 gal milk" and "eggs" are fine.
The goblin does the math
It matches each item to real products, compares pack sizes by unit price, and adds fees, memberships and rewards.
Shop the winning cart
See the cheapest single store and the best two-store split, then send the cart to King Soopers or Instacart in one click.
Counts what other price checkers skip
The cheapest shelf price is not always the cheapest trip.
Fair pack sizes
A 3 lb bag and a single banana are compared by unit price, then sized to what you asked for.
Your memberships and cards
Tell it which clubs you belong to and which cards you pay with. Rewards come off the total.
Delivery and pickup fees
Fees are part of the price, so a cheap store with a big fee does not win by accident.
Two-store splits
When splitting the list between two stores saves real money, it shows you exactly what to buy where.
Stores it checks
Prices are refreshed every week, and items you add get looked up on the spot.
- King Soopers
- Walmart
- Target
- Safeway
- Costco
- Sam's Club
- Sprouts
- Aldi
- Whole Foods
- Amazon Fresh
- Marczyk Fine Foods
- Total Wine
Want in?
CartGoblin is in a small private beta around Denver. Send a note and tell us which stores you shop at.