Price drop alerts: how to get notified when a price drops

To get notified when a price drops, save the product in a tool that watches its price for you and give it a target price: you get an email or notification as soon as it's reached. Depending on where you shop, that tool can be a comparison site (idealo, leDénicheur), an Amazon tracker (Keepa, CamelCamelCamel) or a link-based price tracker. What really makes the difference is choosing a realistic threshold and not falling for a fake price drop.

How does a price drop alert work?

The principle never changes: a service checks a product's price regularly, compares it with a condition you've set, and lets you know when it's met. There are three main kinds of condition:

• Target price: "tell me when the price goes below this amount". The most useful if you know what you're willing to pay.
• Any drop: an alert for every decrease. Handy to learn how a price behaves, but noisy.
• Back in stock: useful for a sold-out product, such as a console or a very popular model.

Ways to get a price alert

Method	Where it works	Alert type	Main limit
Retailer wish list or favourites	That retailer only	Notification, depending on the app and your settings	Varies by retailer, rarely a precise target price
Comparison site (idealo, leDénicheur)	The comparator's partner retailers	Target price, every drop, back in stock depending on the service	Unlisted retailers are invisible; leDénicheur doesn't include Amazon in its history
Amazon tracker (Keepa, CamelCamelCamel)	Amazon	Target price, with Amazon history	Amazon only
Deals community (Dealabs)	Deals posted by members	Keyword alert	Doesn't watch a specific product, only what gets posted
Link-based tracker (UniverTrack)	Amazon, Cdiscount and other retailer sites on a best-effort basis	Target price, by email	Outside Amazon, history starts the day you begin tracking

Retailer wish lists

Saving an item to your favourites is the simplest reflex. Some retailer apps then flag price drops on saved items, but it depends on the retailer and your notification settings. It's a nice extra, not a real strategy, especially if you shop at several retailers and don't want a separate app for each one.

Comparison site alerts

idealo and leDénicheur let you set a free alert on a product, with price history on the product page. That works well for products sold by many retailers. Our guide to the best price comparison sites covers the differences.

Amazon-specific tools

For an Amazon purchase, a long price history is gold: it shows usual prices and past lows. See our guide to tracking a price on Amazon.

How to set a smart target price

The target price is the heart of the alert. Too high and you pay an ordinary price. Too low and the alert never fires. Here is a four-step method.

1. Learn the usual price over a few weeks, or check the history if one exists. What matters is the most frequent price, not the crossed-out one.
2. Spot past lows and their context: a very low price during an event like Black Friday won't necessarily come back on an ordinary Tuesday in March.
3. Aim between the usual price and the lowest price seen, rather than the all-time record.
4. Set yourself a deadline: if the alert hasn't fired by then, rethink your threshold or buy at the best current price.

A hypothetical example

Example: imagine a vacuum cleaner listed at €300. Tracking it for a few weeks, you see it usually moves between €280 and €310, and dropped once to €239 during a big sales event. A €239 target may never fire; a €299 threshold saves you nothing. A threshold around €259 or €265 would be a genuine deal with a reasonable chance of being reached. These figures are an illustration, not real data.

How to avoid fake price drops

An alert can flag a "drop" that isn't one: a price pushed up a few days earlier, then brought back to its usual level with a sale banner. In France, since 28 May 2022, an announced reduction must be calculated from the lowest price the seller charged in the previous 30 days (article L112-1-1 of the Consumer Code, implementing the EU Omnibus directive). It's a useful safeguard, but it won't tell you the product was cheaper two or three months ago. Our article on the 30-day rule explains more.

The fix: judge an alert against the price history, not the percentage on the banner. Our tips to spot a fake discount help you decide in seconds.

How to avoid alert fatigue

Alert fatigue is price tracking's worst enemy: too many notifications, and you stop opening them, including the one that mattered.

• Prefer a target price to any-drop alerts, except when observing a product for a few days.
• Track what you actually plan to buy, not everything you like.
• Sort your products: short-term planned purchases on one side, "if the price ever crashes" wishes on the other, with a tougher threshold.
• Clean up after buying: delete the alert once the product is bought or dropped.
• Centralise: one inbox or one tool beats juggling three apps.
• Review your thresholds once a month: if a price has settled lower for good, your old target is no longer a bargain, and a threshold that never fires deserves a second look.

What to do when the alert fires

A low price can last only a few hours. Keep a short routine ready:

1. Check the final price in your basket, delivery included.
2. Check who is selling: the retailer itself or a third-party seller, and on what return terms.
3. Compare with the history to confirm it's genuinely a good price.
4. If everything checks out, buy rather than wait for a hypothetical further drop.

For periods when alerts come thick and fast, our Black Friday 2026 guide (Friday 27 November) helps you set thresholds in advance.

Put it into practice: create your alert in 3 steps

Watching by hand means opening the product page every day and still missing the Sunday-night drop. With UniverTrack, the price is checked automatically, a dated history builds up, and an indicator tells you whether it's a good time to buy.

1. Paste the product link (Amazon, Cdiscount or another retailer site): a preview and the current price appear.
2. Set your target price using the method above, then let UniverTrack notify you when it's reached.
3. Get the email at the right time, check your basket and buy.

For a single big purchase, the Découverte plan is enough. If you track many products and want to filter out fake discounts, Malin (fake-discount detection, AI buying assistant) fits best; for back-in-stock alerts, look at Expert. Everything is on the pricing page, and every plan starts with a 14-day free trial, no commitment.