Corrections policy
A site that publishes formulas and claims about other companies will sometimes be wrong. This is how you tell us, and what we do.
Last updated 29 September 2026What to send
- The page address, and the calculator if it is a calculation.
- What you entered and what you expected. A worked example done by hand is the most useful thing you can send.
- For a statement about a software product: a link to the vendor’s own page that shows something different.
You do not need to be a customer of anything or to give your name. The form collects the reason, your message and the calculator you were on. Nothing you typed into a calculator leaves your browser.
What we do
- Calculations. Reports about a wrong result go to the front of the queue. We re-derive the answer by hand and check the unit conversions. If the calculator is wrong, we fix it, add a test that would have caught the error, change the formula version and update the last-reviewed date on that calculator.
- Sourced figures. We re-read the source. If the source says something different from the page, the page changes. If the source is itself contested, the page says so instead of picking a side.
- Statements about a product. We re-read the vendor’s own page. A statement that was wrong is corrected, the “read on” date moves to the day of the new check, and the change is logged. See how we review software.
- Wording that is accurate but unwelcome. Not changed. A vendor may object to a fair statement of the fact that it publishes no price; that is not an error.
What we do not do
- Change a statement in exchange for payment, an advertisement or an affiliate arrangement.
- Quietly edit a page to remove an error without recording that it existed, when the error affected a figure or a claim.
- Promise a response time we cannot keep.
Corrections log
Changes to figures and factual claims are listed here, newest first. The log starts on 29 September 2026; earlier changes are in the site’s internal quality record and are not listed. Editorial restructuring that corrects no error, such as merging two pages, is not logged here. The first entries were found by the site’s own checking rather than reported by a reader, and they are listed for the same reason as any other: a page that was wrong should say so.
Said: The page said that not one of the four earthwork-takeoff tools publishes a price, and listed AGTEK and InSite as having none.
Now: AGTEK states a starting price (around $650 a month on a one-year subscription for a shared key) in an article on its own site, and InSite links a subscription price sheet (a PDF) from its Price Sheet page. HCSS and Roctek publish no figure. The error came from looking for a page called “pricing” and finding none, instead of checking whether each vendor states a price anywhere on its site. The headline, summary and structured data were rewritten, and a price is now recorded as unpublished only after at least two separate checks are listed.
Said: QuoteIQ was described as serving 100+ trades and as having a self-quoting website widget.
Now: The vendor’s site now states 50+ industries, and the widget could not be re-confirmed, so it was removed from the description.
The rest of how this site works
- Editorial policy — What Calcumetryx publishes, the evidence a page needs before it goes live, and how advertising and the owner’s commercial interest are kept out of the content.
- Sources and data — Which sources a number may come from, which it may not, and how every external figure on the site is recorded and dated.
- How we review software — The evidence levels, the three states of a claim, and the rules for prices and rankings on buyer’s guides. No scores, no stars.
- Who makes this site — Who publishes Calcumetryx, how AI assistance is used in drafting, and what credentials are and are not claimed.