What Is a Price Drop and How Can You Use Price History to Catch It?

A price drop is any moment when a product's current price falls below what it previously sold for. To catch a real one, paste the product's webpage URL into a price tracker, read the price history curve, and set an alert at your target price. The catch: a drop is only a good deal if the new price is below the item's historical average — not just below its last listed price.

Why a "drop" can still be a bad buy

Retailers frequently raise a price before discounting it, so a 30% cut may land above the price the item held for most of the year. Price history solves this by showing the full range: the highest price, the lowest price, and the average. A drop is meaningful when the current price sits below that average, and strongest when it approaches the historical low.

The tracker's own listings show how wide that range can be:

Product List price Tracked price Platform
The Complete Full-Stack Web Development Bootcamp $124.99 $28.34 Udemy
100 Days of Code: The Complete Python Pro Bootcamp for 2023 $129.99 $34.81 Udemy
The Complete JavaScript Course 2024: From Zero to Expert! $199.99 $112.40 Udemy
The Web Developer Bootcamp 2026 $159.99 $86.76 Udemy
The Complete Python Bootcamp From Zero to Hero in Python $199.99 $38.21 Udemy

A course listed at $199.99 and now at $38.21 is a genuine drop. The same course at $112.40 is technically cheaper than list, but far from its floor — worth waiting if you're not in a hurry.

Reading the price history before you decide

The tracker's "Check Price History" section frames it plainly: getting the best deals starts with information. Enter a product's webpage URL and the tool returns the price curve for that item.

Use three reference points:

  • Historical low — the floor the item has actually reached. Prices near this line are the strongest buys.
  • Average price — the typical selling price. Anything below it is a real discount; anything above it is not, regardless of the "was" price shown.
  • Time at low — how long the low lasted. A price that touched its floor for one day behaves differently from one that sat there for weeks.

The site also surfaces Price Drops In The Last 30 Days and Price Drops In The Last 90 Days, listing items by how far below average they currently sit. Recent examples include a handbag at $88.63 against a $245.78 average (64% below average), a Tory Burch sandal at $179.00 against $259.05 (31% below), and a refurbished iPhone 12 Pro at £219.00 against £301.68 (27% below). These percentages are measured against the average, which is exactly the comparison that separates a real drop from a cosmetic one.

Setting a price drop alert

A price drop alert notifies you when an item falls to a price you choose, so you don't have to check manually.

  1. Copy the product page URL from the retailer — the tracker supports a long list of stores, including Amazon, Best Buy, Walmart, Target, Costco, IKEA, Nike, Udemy, Google Play, and the App Store.
  2. Paste it into the price tracker on the site. The tool builds the price history for that item.
  3. Review the curve for the historical low and average before choosing a number.
  4. Set your target price at or slightly above the historical low, not at the current price.
  5. Wait for the alert. The tracker also offers back-in-stock alerts, useful when a discounted item sells out.

The same mechanism powers the "Lowest Price Check" view, which tells you whether today's price is the lowest the item has seen.

What to check before you buy on a drop

  • Is it below average? If not, the drop is marketing, not savings.
  • How close is it to the historical low? Within a few percent is a strong signal; halfway up the range usually means waiting.
  • Is the low seasonal? Many categories — electronics, apparel, courses — repeat their deepest discounts on a cycle. Price history reveals that rhythm.
  • Did the price recently spike? A sudden jump followed by a "sale" back to normal is not a drop.
  • Is stock a factor? A low price on a nearly sold-out item may not last; a back-in-stock alert covers the reverse case.

A price drop tells you the price moved down. Price history tells you whether it moved down enough. Set your alert against the historical low and average, and you'll buy on the real drops instead of the advertised ones.

glassit.co
Price tracker for discount price history lookup & back in stock alerts