The Problem Price Trackers Solve
Not every "sale" is a genuine discount. Retailers sometimes raise the listed price weeks before a sale event before applying a percentage reduction, making a modest saving look like a dramatic one. Without historical price data, it's nearly impossible to know whether today's price is truly a deal.
Price tracking tools solve this by maintaining a historical record of a product's price over time. A quick check shows you the price trend at a glance, so you can make an informed decision rather than relying on the retailer's framing.
How Price Tracking Works
Price trackers use automated bots (web scrapers) to visit product pages at regular intervals — often multiple times per day — and record the current price. This data is stored and displayed as a price history chart on the tracker's platform. More advanced tools also:
- Send email or push notifications when a price drops to your specified target.
- Show the all-time low, 30-day low, and 90-day average to provide context.
- Track prices across multiple sellers simultaneously for comparison.
- Flag when a "deal" price is actually higher than the recent average.
Types of Price Tracking Tools
Marketplace-Specific Trackers
These focus on a single major online marketplace and provide deep historical data for that platform. They're particularly useful for electronics and household items sold by multiple third-party sellers at varying prices. Browser extensions that overlay price charts directly onto product pages are the most convenient form.
Multi-Retailer Price Comparison
These services track the same product across several different retailers, showing you who currently has the lowest price. Useful when you're not committed to buying from a specific store and simply want the best overall deal.
Supermarket Price Trackers
Dedicated to grocery shopping, these tools compare the current price of specific branded products across major supermarkets. They account for loyalty card prices and multi-buy promotions to give a true comparison.
Setting Up Price Alerts: A Step-by-Step Approach
- Identify your target price. Look at the price history and decide what you'd consider a fair price — typically at or near the recent low.
- Paste the product URL into your chosen price tracker.
- Set an alert for when the price drops to your target. Most tools allow email notifications; some offer browser or app push notifications.
- Wait. Resist the temptation to buy immediately unless the current price already meets your target.
- Act quickly when alerted. Good prices at popular products don't last long, especially during sale events.
Combining Price Tracking with Vouchers
Price trackers and voucher codes work best together. Use the tracker to confirm the base price is genuinely good, then layer on a voucher code and cashback for maximum saving. If a tracker shows a product is at its lowest-ever price, that's the moment to apply every available discount on top — the combination of a genuine sale price plus a voucher code plus cashback is rare and worth acting on promptly.
Limitations to Keep in Mind
- Data gaps: If a product is new or rarely tracked, historical data may be limited.
- Flash sales: Very short-duration sales (a few hours) may not be captured in time for you to act on an alert.
- Third-party sellers: On large marketplaces, price data can vary between the main retailer and individual marketplace sellers — ensure you're comparing like for like.
- Availability: A low tracked price is only useful if stock is available. Popular items at all-time lows sell out rapidly.
Making Price Tracking a Habit
The most effective approach is to add items to your price tracker wishlist as you think of them — months before you necessarily need to buy. This gives the tracker time to build a meaningful price history and ensures you're alerted the moment conditions are favourable. Patient shoppers who use price alerts consistently will almost always pay less than those who buy on impulse.