Is Hagglezon free to use, and how does it make money?

Yes — Hagglezon is free to use. According to the site, Amazon pays Hagglezon a commission, so you don't. The same page states that Hagglezon runs no ads and never sells your searches or personal data, framing the user as "the customer, not the product."

What "free" covers

Free use means you can search and compare prices across all ten European Amazon marketplaces without paying Hagglezon anything. The site lists its coverage as DE, ES, FR, IT, NL, PL, SE, BE, IE and UK.

What you still pay is the normal cost of whatever you buy: the item price (VAT included, converted to your currency) plus shipping. Hagglezon notes that Amazon doesn't expose shipping before checkout, so it shows exact shipping at Amazon's own checkout rather than estimating it.

How the money works

The commission model is the key mechanism: because Amazon pays when a purchase results, Hagglezon doesn't need to charge users or sell attention to advertisers. The site also claims results are never reordered to favour a marketplace that pays it more — "if it's cheaper for you, it shows first."

What this means in practice

• You can use the comparison tool at no cost and without a paywall mentioned on the page.
• There is no ad-supported trade-off described, so you aren't exchanging attention for access.
• The commercial incentive is aligned with sending you to a purchase, which is worth knowing when you read the "ranked by price" claim — it's the site's own statement, not an independently verified one.

Related questions worth checking

• Whether buying from another EU country's Amazon is legal and duty-free (Hagglezon says yes within the EU single market, with VAT as the only tax, already included in the listed price).
• What Hagglezon actually does and how it compares prices in real time across all ten marketplaces.

For the free-use and funding question specifically, the answer is straightforward: no cost to you, funded by Amazon commission, no ads, no data selling.