Never miss a potential Costco price adjustment.
BulkBack organizes and stores your Costco receipts on your phone, then alerts you to potential price adjustments on items you already bought, before the 30-day window closes.
Scan, store and search your receipts
Snap your receipts. BulkBack reads the items and prices. Your receipts stay on your iPhone.
Potential price adjustment alerts
Catch items you bought that are now on sale, with the potential refund and the days left to claim. (BulkBack Plus)
Savings book
Browse and search the current Costco savings book, with validity dates. Mark the items you want to buy and add them to your shopping list or saved-for-later list.
Shopping list
Build your list and keep it with your receipts and savings in one app. Add items by typing them in, from the savings book, or from your past receipts.
Purchase insights
Analyze what you bought, where, when and for how much. See where your money goes and how much you saved.
Private by design
No account and no sign‑up. Anonymously sharing prices with other members is optional and off until you say yes.
How price adjustments work
Costco may refund the difference if an item you bought goes on sale at the same warehouse within 30 days of purchase. BulkBack helps you notice these chances. Costco decides every claim at the warehouse, so a potential refund is never a guarantee.
BulkBack Plus
Receipt scanning and history, purchase insights, the shopping list and the savings book are free. BulkBack Plus unlocks the automatic matching and price-adjustment alerts. The price is shown in the app before you subscribe. See the Terms of Use for details.
Questions? Visit Support or email support@bulkback.com.