PriceWatcher

I flip items occasionally. Sneakers, electronics, whatever — when I spot a deal I know it. The problem is timing. You find a good and rare product but the seller is not willing to negotiate...just yet, naturally. So you track it manually for days, and either the price moves while you're not looking or you forget about it entirely.

I went looking for a tool that could track any listing and alert me when prices moved. What I found was either brand-locked to Amazon or eBay, long abandoned, or built for store owners tracking competitor pricing — not for someone following individual listings across different sites, including new and second-hand markets. That gap bothered me enough to build something.

What I built

PriceWatcher started as a browser extension for my personal use. Then after six months of perfecting it, it grew into a proper product.

You paste any URL. It pulls the listing into your dashboard — title, image, current price, and extra info depending on the site (lowest price history, auction end dates, variant-level tracking like a specific sneaker size). Alerts fire on any price movement by default, or you can set thresholds — a percentage drop or a fixed target price. Out of stock tracking is in there too.

The best part about it - Community driven self-growth

When someone adds a URL from a domain I don't support yet, they get prompted to help add it, and if they agree, they are expected to paste in the title and price manually. PriceWatcher then tries to fetch it automatically. If the fetch succeeds and the user confirms it looks right, then that domain gets added to the supported list — so the next person to add a listing from that site gets automatic fetching.

If the fetch fails, it gets logged, I inspect it, and build out static support for it as fast as I can.

Success is not 100% guaranteed on unsupported domains but it's working pretty well so far.

Tiers

PriceWatcher offers a Free plan - which is a bit restricted in comparison to the paid tiers. Free users can track listings from any supported domain and help add new ones — they're only limited in how many listings they can track and the custom alert thresholds they can set.
https://pricewatcher.co/plans


The verdict

I can't possibly know every domain a user might want to track, and even with massive coverage there'd always be gaps. This way the product grows with what users demand, instead of waiting on me.

Where things stand

Just got payment processing approved and paywalls live this week, so this is day one of being a real business. The free tier is available with no trial period and no credit card required.

Revenue: $0. Users: still none.

What I'm focused on next

Expanding the supported domain list, getting early feedback from real users, and figuring out whether the people who actually need this are resellers like me or a broader audience.

Feedback

If you track prices for any reason — reselling, deal hunting, shopping, auctions — I'd genuinely love to know if this solves something real for you, and if the community add is a good feature. And if you see something obviously broken, i would love to know asap.

https://pricewatcher.co/