ASIN Watcher
Why this exists

The listing price is not the price you pay

Buying an Amazon product into another country turns on a number the listing never shows you: what it costs once shipping and import fees are added. This site records that number, per destination, and keeps the record.

The problem is arithmetic

Finding the product is not the hard part. The hard part is that the same item, from the same seller, ends up costing different amounts depending on where it is going, and the difference is not in the item price at all.

Amazon does show the parts. Choose a delivery destination and it will tell you the base price, the shipping, and the import fees it expects to charge. It shows them one destination at a time, only while you are looking, and it does not keep them for you.

So a price tracker that records the item price and stops is answering a question nobody asked. The number that decides where to buy is the total, and the total is mostly made of the parts that are hardest to see.

What we cover

Three delivery destinations: Bolivia, Peru and the United States. That is the current list, and it is the honest version of what we can promise. Country selection is passed straight through to Amazon's own delivery picker, so the machinery does not care which one you pick — but a country is only covered once it is switched on and actually checked.

All three are the same store, priced for a different delivery address. We are not comparing national storefronts against each other. Holding the item and the seller fixed and changing only the destination is what isolates the part of the cost the listing does not show you.

Asking to track a destination that is not on the list is refused outright, before any credit is spent. A rejection is not a queue. We would rather say no than quietly take a credit for a check that never runs.

Where the numbers come from

Every figure comes from one visit to one product page, with the delivery destination already set. Base price, shipping, import fees, total. Four numbers, read off the page, stored as they were read.

Nothing is modelled and nothing is estimated. The import fees are the figure Amazon itself displays for that destination, not a customs table we maintain and not a percentage we apply. If we are wrong, we are wrong in exactly the way the page was.

The same rule cuts the other way. When the page shows no price, what gets recorded is that there was no price. There is no interpolation, and no last-known figure quietly standing in for today.

What the record looks like

A new row is written when the price moves, when availability flips, or on a periodic heartbeat, so that a quiet month still leaves evidence. Between heartbeats, a check that finds everything unchanged is not written down a second time.

Nothing is deleted. When tracking runs out the checks stop and the history stays exactly where it was, and spending another credit picks up from there.

Amazon also serves bot walls, and a blocked read is recorded as a blocked read rather than filed as a product going out of stock. A page that loads without a visible price is recorded as that, too. Gaps in a chart are real. We would rather show you the gap than paint over it.

How it is paid for

Prepaid credits, no subscription. One credit tracks one product, in one destination, for 30 days. The same product in a second destination is a second credit, because it is a second thing to check.

Creating an account includes credits that are valid for a year. Purchased credits are valid for 30 days from the day you buy them, the same length as one tracking period, which is worth knowing before you buy a large pack you cannot spend in time.

Credits are not returned if you stop early. Tracking stays live for the full 30 days either way, so stopping early gains you nothing.

What this is not

There is no cart here and no checkout. We do not sell the product, take a cut of it, or send you through a link that pays us. When a page here says one marketplace is cheaper, nothing about our revenue changes if you agree.

We do not track seller rank, reviews, keywords or categories, and we do not tell you what to sell. This is a tool for deciding where to buy one specific thing you have already chosen.

We are not affiliated with, endorsed by, or sponsored by Amazon.com, Inc. We read the same public pages you would, from the same destinations you would choose, and we keep what we read.