You can browse this website without telling us who you are. There are no accounts or forms on the site.
We collect personal information when you choose to give it to us, for example your name, email address, company and the content of your message when you email us.
We also use Plausible Analytics to measure how the website is used. It records pages visited, referring websites, browser, operating system and device type, approximate location (country, region and city), engagement measures such as scroll depth, and clicks on key links. Plausible says it doesn't store IP addresses, and it counts unique visitors using a hash that changes every 24 hours and can't recognise you across days or on other websites. We only see this information as combined statistics.
The calculator on our homepage runs in your browser. The numbers you enter aren't sent to us.