Contact
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DailyCalc is published by FutureTek Apps, an independent software developer, which also publishes the DailyCalc Android app. There is no contact form on this site — a form would mean collecting your details, and the whole point of the site is that it collects nothing. Email reaches the person who writes the calculators.
Reporting a wrong result
These are the messages we most want to receive. Please include the calculator's name, the exact values you entered, the result you saw and the result you expected. Accuracy is the entire value of a site like this, and corrections are applied quickly.
Privacy requests
Questions about data are answered at the same address. Note that because the site holds no account, no identifier of its own and no database of visitors, there is generally nothing stored about you for us to retrieve or delete — see the privacy policy for detail.
Disputing a formula
Where a calculator implements a published formula, the page names it and cites the source, and the methodology page explains how that source was chosen. If you think the wrong formula was chosen, or that a cited source has been superseded, say so and name what should replace it — that is a more useful message than a bare report that a number looks off, and it gets a faster answer.
Suggesting a calculator
Suggestions are welcome, particularly for calculations you currently do by hand or in a spreadsheet. Saying what you are actually trying to work out is more useful than naming a calculator, because the useful tool is often not the one the question started with.
Advertising and commercial enquiries
The site carries no sponsored posts, paid links or affiliate placements, and none are for sale. Advertising is served through an ad network rather than sold directly, so there is no media pack and no rate card. Enquiries of that kind will not receive a reply.