Nothing is on the public record against it: no FTC or state action, no FDA warning letter, no failing BBB grade. That is not an endorsement, and it is a different question from the ratings — they do not agree, by 0.6 of a point.

Why is Knownwell rated 4.2 on one site and 4.8 on another?

Because the two are counting different people. Trustpilot has it at 4.80 from 210 ratings and Apple App Store at 4.17 from 30. Reviews left by anyone who chooses to, plus reviews from customers the company invited. Both routes are self-selected, in opposite directions. Ratings of the iPhone app, most of them left in response to a prompt the app itself chose when to show. It measures whether the app worked, not what the service costs or what is on the company's record. Neither is fake. They answer different questions, and no page that quotes one of them says which.

Which Knownwell rating should I believe?

Whichever you can say what it measures. The largest count here is 210 on Trustpilot, which is a lot of people and still only measures what that site collects. A rating cannot tell you what a company was told to stop doing by a regulator, what its contract commits you to, or what it charges once the introductory month ends. Those are on this site with the source and the date.

Knownwell reviews

What do reviews of Knownwell actually say?

They disagree by 0.6 of a point out of five. Trustpilot rates Knownwell 4.80 from 210 ratings, read 2026-08-31, and Apple App Store rates it 4.17 from 30, read 2026-09-11 — for the same company. Every figure below is real; they count different people, gathered in different ways, and no page that quotes one of them says which.

Last updated 2026-09-11 — the ratings below, each with the date it was read. Read and dated by Alex Seot.

Every rating, and what each one measures

4.80Trustpilot210 ratings, read 2026-08-31See it →
Reviews left by anyone who chooses to, plus reviews from customers the company invited. Both routes are self-selected, in opposite directions.
Listed as: Read Customer Service Reviews of knownwell.co
4.17Apple App Store30 ratings, read 2026-09-11See it →
Ratings of the iPhone app, most of them left in response to a prompt the app itself chose when to show. It measures whether the app worked, not what the service costs or what is on the company's record.
Listed as: knownwell

Each rating carries the date it was read and links to the listing it came from. These are the ratings a search for “knownwell reviews” turns up, which is where a reader meets them. Employer ratings on Glassdoor and Indeed are excluded: they measure what it is like to work there.

What no rating on this page can tell you

Nothing is on the public record against Knownwell — no FTC or state action, no FDA warning letter, no failing BBB grade. That is checkable in a way a star rating is not, and it is not the same as a recommendation.

The full record, with each document →The price and the terms →Every provider's ratings, side by side →

The registers behind the record beside these ratings

A star rating is what a site collected. These are the registers this page sets it against, named so the comparison can be checked.

Warning letters, U.S. Food and Drug Administration — The register searched for every seller on this site. A letter found here is linked from the seller's page to the original.
Cases and proceedings, Federal Trade Commission — The register searched for advertising and billing actions against a seller.