The calculators run in your browser. They use counts, dates, requirements and budget figures; they do not ask for an account or customer records.
Calculator inputs
Your entries are not sent to Stacked or to software vendors by the calculator code. Keep names, addresses, door codes, card details and other customer information out of the tools.
Storage and downloads
Calculator state lasts in the current page session. The site does not use analytics, advertising pixels, cookies or local storage. Files you choose to download are saved through your browser.
The service delivering a webpage receives the technical request needed to provide it. This is separate from the calculator inputs, which remain in the browser.
External websites
Following a vendor or source link takes you to another website with its own privacy practices and terms. Those links do not include your calculator inputs.
See advertising and vendor links for how the site handles commercial links.