Costco price tracker: free price drop alerts
Published August 11, 2026 · 5 min read
Short answer: copy the Costco product URL into PriceWatch and it checks the page in the background. When the listed price changes, you get an email — no extension, no manual refreshing.
Why Costco prices are hard to follow
Costco rotates promotions on a schedule rather than continuously, so a price can sit unchanged for weeks and then move overnight. Online-only items, seasonal stock and clearance ends (the prices ending in .97 shoppers watch for) all appear without notice. If you are waiting on a mattress, a laptop, patio furniture or an appliance, checking the page daily is the only way to catch it manually.
Set up a Costco price alert
- Open the Costco product page for the exact item, size and colour you want.
- Copy the full URL from the address bar (it should contain the product name and item number).
- Paste it into PriceWatch and save the tracker.
- Pick how often it should re-check in Settings, then wait for the email.
The store-specific setup notes live on Track Costco prices.
What the tracker can and cannot see
- It reads the public product page price. That is the number most Costco listings show before checkout.
- It does not sign in. Member-only pricing that appears only after login, or in-warehouse tags, are not on the public page.
- It skips suspicious readings. If Costco changes its page format or serves a block page, PriceWatch flags the link instead of emailing you a wrong price.
Costco items worth tracking
- Laptops, TVs and tablets, which move around major sale events.
- Mattresses, sofas and patio sets, where a single drop is worth hundreds.
- Appliances and vacuums with recurring manufacturer promos.
- Seasonal and holiday stock that ends in clearance.
How it compares to browser extensions
Coupon extensions look for codes at checkout, which rarely helps at Costco. Price-history tools are built around Amazon and usually ignore warehouse retailers entirely. PriceWatch just watches the URL you give it, which is why it works on Costco alongside Walmart and Best Buy.