The short version
The calculators run entirely in your browser. Nothing you type into them is sent to us or stored anywhere. We do not have accounts, sign-ups or forms that collect personal information.
Calculator inputs
Every number you enter is processed by JavaScript on your own device. When you close or reload the page, it is gone. We never see it.
Analytics and server logs
Like most websites, our hosting provider records standard server logs (IP address, browser type, pages requested, time of request) for security and to keep the site running. We use Cloudflare Web Analytics to count page views. It does not use cookies, does not build a profile of you and does not identify you personally.
Advertising and cookies
This site may display advertisements served by Google AdSense. Google and its partners use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google Ads Settings or aboutads.info. Google's use of advertising cookies is described in Google's advertising policies.
Third-party vendors, including Google, may use cookies to serve ads based on your visits to this site and other sites on the internet. We do not control these cookies and do not have access to the data they collect.
Consent in the EEA, UK and Switzerland
If you visit from the European Economic Area, the United Kingdom or Switzerland, personalized ads are only shown after you give consent through the consent message displayed with the ads. You can withdraw or change that consent at any time from the same message, and you can still use every calculator without accepting.
Purchases
The full spreadsheets are sold through Etsy and Gumroad. When you buy, the checkout is run by that platform, and your name, email and payment details go to them, not to this site. Gumroad's checkout window opens on top of our page but is operated by Gumroad under the Gumroad privacy policy.
Affiliate links
Some pages may contain links to products or services where we earn a commission if you make a purchase. These links do not change the price you pay. We only link to products relevant to the trade the page is about.
External links
Links to Etsy, Google and other sites are governed by those sites' own privacy policies. Our Etsy shop operates under Etsy's privacy policy.
Children
This site is for business owners and is not directed at children under 13. We do not knowingly collect information from children.
Changes
If this policy changes, the date at the top of this page will change with it.
Contact
Questions about this policy can be sent to [email protected] or through our contact page.