Price & Product Monitoring
Price & Product Monitoring For Actionable Intelligence
ChangeTower checks your product, deal and pricing pages as often as every 5 minutes and alerts you the moment your price, stock or promo criteria are met.
✓ No credit card · First monitor live in 5 minutes
Every page here is under a monitor. ChangeTower checks it on your schedule, stores a dated snapshot each time, and alerts you when your criteria are met.
The screenshot stored on that check: the page as a visitor saw it, kept with its HTML and never edited.
Detection is content-level: ChangeTower reads the words and the HTML. The screenshot is the stored record of the page, never compared against anything.
Every product, deal and pricing page in one place, your own store's included. Open a row for what changed and how the page looked.
Monitor only the products, prices, or other content you care about
Write your alert criteria in plain language, per monitor. The AI reads every change against them: matches reach you, the rest is archived.
Criteria in your own words.
No thresholds buried in settings screens. Say what deserves an alert and the monitor holds to exactly that.
One rule, written once. The $249 bump is archived; the out-of-stock flip and the drop below $200 reach you.
Every product or price change tracked in a single source of truth
Every check stores a snapshot, changed or not. Prices, offers and codes become a record you can open to any date.
Every price and offer, dated and kept.
Prove what your pages showed. When a price-match or ad-accuracy question turns on a date, open it and export.
From the price drop alert to checkout before the deal ends.
Explore how ChangeTower improves price and stock tracking.
Anyone seen the K7s under $200 yet? The gift budget says $200, and the last sale sold out in a morning.
Every monitored page captured on schedule. 2 changes since yesterday, both archived.
AI summary: Price dropped from $249.00 to $199.00, below your $200 threshold. The listing shows in stock.
Routed to the channel you already watch. Email, Teams and webhooks carry the same alert.
The K7 Wireless Headphones dropped from $249.00 to $199.00, a $50 cut that puts the price below your $200 alert threshold. The listing shows in stock, and no coupon code is required.
$199.00. Was $249.00. Save $50 for a limited time.
Adaptive noise cancellation, 40-hour battery and multipoint pairing.
Ships in 1 to 2 business days from the Portland warehouse.
The screenshot stored on that check: the page as a visitor saw it, kept with its HTML.
Every hour in between has a snapshot too, changed or not. So you can answer what the price was at any moment.
Every price and stock move this quarter, dated and page by page. Sellers archive their own offers the same way.
Fire new monitors directly from a product or pricing page
The ChangeTower browser extension converts any product page into a monitor.
From open tab to watched page, in one click.
Found the bike and want to know when it drops? Click the icon, say what to watch for, and it is monitored.
$1,450.00. Financing available at checkout.
Aluminum frame, 12-speed drivetrain, 140 mm travel. Sizes S and L in stock; size M is awaiting the next delivery.
Restocks are listed on this page as they arrive. No date announced for size M.
Found while browsing, monitored before the tab closes, archived from its next check.
Purpose-built for the signals price watchers actually track.
A hot restock is gone in an hour, a supplier price list moves once a quarter, your own store changes every deploy. Set check frequency per page, as often as every 5 minutes.
Price Drops & Increases
Watched for the price itself: every move, or only when it crosses your number.
every 5 min – hourlyStock & Restocks
Out-of-stock listings watched for the flip back to available, before it goes again.
every 5 minDeals, Coupons & Promo Codes
Sale and offer pages: a new code, a changed threshold, a promotion that quietly ends.
dailyYour Own Product Pages
Prices, sale badges and availability on your own store, verified after every deploy.
dailyMissing-Element Alerts
A sale banner, discount code or price block that was there and no longer is.
dailyMarketplace Listings
Marketplace listings you shop or sell on: price and stock moves, at SKU scale.
hourly – dailyCompetitor Pricing Pages
Competitor price pages, plan tables and fee schedules, watched without anyone remembering.
dailyTravel, Tickets & Bookings
Fares, ticket releases and availability pages that reward whoever sees them first.
hourlySupplier Price Lists & Fee Pages
Wholesale price lists, rate cards and fee pages from the vendors your margins depend on.
weeklyWhere price watchers put ChangeTower to work.
Buy at the right moment, not the moment you remembered
Set the rule once: below your number, back in stock, new code. With checks as often as every 5 minutes, the alert lands while the deal is live, not after it sells out.
Keep your own prices right, deploy after deploy
A catalog update drops a sale price. A promo banner vanishes mid-campaign. An item shows out of stock that isn't. Every check verifies your pages, so you catch it before a customer does.
An archive of every offer you ran
Every price and discount your pages displayed, stored as dated snapshots. A price-match request, an ad-accuracy question or a pricing complaint that turns on a date becomes a lookup.
Watch the market without the tab habit
Competitor price pages, supplier price lists and marketplace listings, checked on schedule and summarized. The buying team reads what moved in seconds.
For price & product monitoring, turn these on.
The capabilities price watchers lean on hardest.
AI Monitoring
Alert criteria in your own words: "alert me if the price drops below $200, or it goes out of stock." Changes come summarized, and only matches reach you.
Explore →Selective Monitoring
Watch just the price block, the stock badge or the coupon field, and ignore the rest. It catches a missing sale banner as readily as a changed price.
Explore →Manual User Actions
Some pages hide the price behind a cookie banner, a popup or a size picker. Record the steps once; ChangeTower replays them before every check, on exactly the part you need.
Explore →Scheduled Checks
Set frequency per page: as often as every 5 minutes for a fast restock, weekly for a price list that rarely moves.
Explore →Bulk Setup
Import a whole wishlist, SKU list or competitor set in one pass. The catalog is monitored in an afternoon.
Explore →Slack & Teams Alerts
Push price and stock changes into the channel you already watch, summary attached. Email and webhooks carry the same alert.
Explore →Questions price watchers ask first.
How does price and stock monitoring work?
You add the product, deal or pricing pages you care about and write the rule in plain language, such as alert me below $200 or when it is back in stock. ChangeTower checks each page as often as every 5 minutes and emails you when the rule is met, with a dated snapshot of what the page showed.
What is a snapshot, and how long is it kept?
A dated capture of a page: what was rendered and the HTML behind it, stored on every check, changed or not. Each is timestamped and retrievable, so "I'm sure it was cheaper last week" becomes a record.
Can I get an alert only when the price drops below a number I set?
Yes, that's the recommended setup. Describe your criteria in plain language: "alert me if the price drops below $200, or it goes out of stock". The AI reads every change against that rule and archives what doesn't cross your threshold, without an alert: the history stays complete, your channel hears only what matters.
How often are product and pricing pages checked?
As often as every 5 minutes, set per monitor: every few minutes for a restock that sells out in an hour, weekly for a supplier price list. Tune it any time, up before a sale, back down after.
Can you watch a price that only appears after a cookie banner, a size picker or a login?
Yes. Record the steps once as manual user actions: close the cookie banner, dismiss the popup, pick the size. ChangeTower replays them before every check, so you watch the price a shopper would see.
Can I watch just the price and ignore the rest of the page?
Yes. Selective monitoring watches just the part you care about: the price block, the stock badge, the coupon field. Reviews, recommendations and rotating banners stop counting as changes, most of a retail page's noise.
Will I get too many alerts?
No, and that's the point of the AI layer. Banners rotate, review counts tick up, recommendations reshuffle: retail pages change constantly. Your criteria decide what deserves an alert; everything else is read, classified and archived quietly. The record stays complete, your channel quiet.
Can I monitor my own store's prices and stock?
Yes, and sellers lean on it hard. Watch your own product and landing pages: confirm every price, sale badge and discount survives each deploy, and get alerted if a sale banner or price block goes missing mid-campaign. The snapshots double as a dated archive of every offer.
How many products or brands can we track at once?
Yes. Bulk setup imports a whole SKU list or wishlist in one pass. Monitors stay organized by retailer, brand or client, each group's alerts routed to its own channel: restocks to you, price-list changes to the buying team. The archive filters the same way.
Where do price alerts get sent?
Email, Slack or Microsoft Teams. Alert rules decide what reaches you, so a price crossing your number lands immediately while a reworded description is archived quietly.
Can you alert me when an item comes back in stock?
Yes. Say so in plain language when you set the monitor, and the check that finds the item available again is the one that emails you.
How is this different from a browser price tracker or a deal site?
A deal site shows you what it decided to list, and most trackers only follow big marketplaces. ChangeTower watches any page you can reach by URL, including supplier price lists and your own store, and keeps a dated record of what each page showed.
Stop finding out about the drop after it's gone.
Put the pages you care about under a monitor and get alerted the moment your criteria are met. First monitor live in under 5 minutes.