How we make money: we don't

A site that tells you whether to buy things owes you a straight answer about how it gets paid. Here it is: it doesn't.

The short version

Since 30 October 2026 every outbound link on this site is a plain link to the retailer or the maker. No link earns us anything. There are no affiliate links, no ads, no sponsored posts, no paid placements and no sold rankings. Nobody has ever paid to appear in a calculator result. This site is a non-commercial project.

Why that matters for you

The math comes first. Calculators compute their answer from your inputs and the evidence. No outcome pays us more than another; the changes page keeps score of every correction.
"Buy nothing" stays on the table. Every tool on this site can conclude you shouldn't buy anything, and several regularly do.
No fear-selling. We do not manufacture a threat to sell a fix. Where evidence is thin, the page says the evidence is thin.
Certification claims always link to the certifier's own database, not to the seller.

What we don't do

No sponsored content, ever, in any calculator or evidence review.
No selling or sharing of your data; the calculators run in your browser.
No pay-to-rank: a manufacturer cannot buy a recommendation, a better position, or the removal of a criticism.

If any of this ever changes, it changes here first: dated, on the record, like every other correction on this site.