
Cost Co-Pilot: Price Drops
Pay once, never subscribe
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$2.99
About
Bought it at Costco. Then the price dropped?
Cost Co-Pilot helps you spot potential price adjustments on purchases you've already made — and find the receipt to ask at the membership desk.
One purchase. No subscription, no in-app purchases, no ads.
SPOT PRICE DROPS AFTER CHECKOUT
Check recent warehouse purchases against available prices at the warehouse where you bought them. The app also looks for matching monthly savings booklet deals and items you bought again for less.
SEE THE DIFFERENCE AND THE DEADLINE
See what you paid, the potential difference and a claim-by date based on the 30-day window. Get a reminder before that date, with notifications enabled.
FIND THE RECEIPT FOR THE DESK
Search your warehouse receipts by item name or number. Find when you bought something, see your spending history and open the full receipt on Costco's site.
YOUR RECEIPTS STAY ON YOUR IPHONE
Sign in on Costco's own website inside the app. Cost Co-Pilot never reads or stores your Costco password. Your receipts stay on your device and aren't uploaded to a developer server.
EXPLORE BEFORE SIGNING IN
After downloading, choose "Try with sample receipts" to explore the app without connecting your Costco account. Sample amounts are examples, not promised savings.
MADE FOR US COSTCO MEMBERS
Works with US costco.com member accounts and in-warehouse receipts. Price coverage can be incomplete, and prices and availability vary by warehouse.
A flagged difference is a potential adjustment, not an approved refund. Not every item qualifies. Costco decides eligibility; ask at the membership counter of the warehouse where you bought it.
Cost Co-Pilot is an independent app and is not affiliated with, endorsed by or sponsored by Costco Wholesale Corporation.
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What's New in Cost Co
1.3.1
October 22, 2026
Fixes sign-in and receipt sync, which stopped working when Costco's Orders page began failing to load. If sync stopped for you, open the app and sign in again. - Receipts open in the app with Costco's barcode, ready for the membership counter, even when Costco's own receipt page won't load. - A clear message when Costco's receipt page isn't loading. - The home screen now shows the app as Cost Co-Pilot.
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