Check Product Price

How the price check works

Lume is a free online tool that reads the price from any product page, stores its change history, and finds the same product across other stores. You don't need to register or install anything - just paste a link and click Check.

A single query gives you three key things: the current price with stock confirmation, full change history with a chart, and comparison against other stores if we find matches. That's enough to decide in 5 seconds whether this is actually a good offer or just marketing dressing.

What you'll see in the report

• Current price - exactly as it appears on the product page right now, with currency and stock status.
• Price history - a chart of changes over the entire time we've been tracking the product. Peaks, lows, trends - all visible.
• Min and max - to instantly see whether a discount is actually real, or whether the store just crossed out an inflated old price.
• The same product at other stores - if we find matches, you'll see where it's cheaper and by how much.
• Verdict badge - a chip next to the price tells you instantly whether this is «the lowest ever», «average» or «currently expensive». No need to manually interpret the chart.

Why checking price history matters

Discount psychology is simple: when you see a crossed-out large number next to the price, your brain automatically reads it as savings. Marketers know this. So the standard playbook is to raise the price 2-3 weeks before a sale, then «reduce» it back to the normal level. Technically a discount exists, in reality it doesn't.

This is especially common before Black Friday, Cyber Monday, and the Christmas shopping season. Read more about the most common «fake discount» tactics in our 5 Black Friday Myths article. A calendar of actual sales in Ukraine is in Price Event Calendar.

How we collect prices

Lume works without partner APIs or store agreements. Instead, when you or another user opens a product page, our server reads it the same way a browser would, and pulls the price from the page's standard product data. That's public information - the same data Google sees when it indexes the site. No special access.

For actively tracked products an automated scheduler checks the price every 1-4 hours. This means the more people use the service, the more accurate the price history in our database. We currently watch over 2,800 products across 650+ stores.

When Lume actually saves you money

• A drone or phone you almost impulse-bought. Price history shows the same number a week ago. No rush - it'll be back.
• A coffee machine with a «-40%» tag in one store. Lume finds the same model at another store, 1,200 UAH cheaper, with zero «sale» markers.
• A seasonal item (e.g. an air conditioner in March). The chart shows that in spring the price is consistently 15-20% lower than in summer when everyone rushes to buy.
• A holiday gift. A week before March 8 or a birthday, prices on popular items go up. Checking the history lets you buy in advance or after the holiday.

Common shopper mistakes

1. Trusting the crossed-out price next to the sale price. The «old» price is often either invented or a one-week spike just before the sale. Check the chart - if that price was steady for months, the sale is genuine.

2. Buying at the first store you see. The same item often varies 10-20% across stores. The cross-store comparison in the report is exactly for this.

3. Ignoring the «markdown» date. A discount running from Feb 1 to Feb 7 is suspicious. Genuine sales last longer or have a clear reason (a holiday, a model refresh).

More on conscious shopping - in our Smart Shopping: 7 Principles article.

Supported stores

Works with over 650 online stores. Popular Ukrainian stores include Rozetka, Comfy, Foxtrot, Allo, Epicentr, MOYO, Eldorado, Stylus, Brain, Citrus, Eva, Watsons. Internationally - Amazon, eBay, AliExpress, Bol.com, Coolblue, Walmart and many more. In general, the service auto-detects products on any most modern e-commerce sites.

Is the discount real?

According to research, roughly 60–70% of online «discounts» are fake. The typical pattern: a store raises the price 2–3 weeks before a sale, then «drops» it back to the normal level so the difference looks dramatic. Lume shows the real history - if today's «sale price» was the regular price three months ago, that's marketing, not a discount.

Automatic tracking

If you'd like the system to track prices automatically, install the Chrome extension or connect the Telegram bot. You'll only get notifications when the price actually changes - no spam. The extension works right on the product page, the bot lives in Telegram. Both are free.

Don't want to track anything yourself? Subscribe to our channel @lume_deals - we post a daily roundup of the best discounts from our database (2,800+ products). No action required on your side - just read the channel and click through to whatever catches your eye.

Privacy

Lume does not require registration, doesn't store your query history, and shows no ads. We only process publicly available information from product pages. Details in the privacy policy.