the extension
Where Sonion works.
Sonion works on a short list of big retailers out of the box. Every other shop is opt-in, one domain at a time, and you can take any of them back off here.
What he does
He checks what every public rating source says about the product you are looking at, shows you where they disagree and who funds each opinion, and reads only the product information already on the page. He never nags and never blocks anything.
Looking for the Greenlens extension…