Last updated October 13, 2026.
The stack-picker quiz itself runs entirely in your browser. It doesn't send your answers anywhere, and we don't run any analytics. The only things stored are your quiz progress and, if you make one, your cookie-settings choice - both saved locally on your device. This page explains that in detail, plus how cookies and advertising work if you see ads on this site.
Stack Picker is run by Stuart Mathieson, an independent web developer based in Scotland, who is responsible for how this site handles personal information (the "data controller" under UK data protection law). In this policy, "we" and "us" mean Stuart Mathieson operating Stack Picker. You can reach him at [email protected].
Using the quiz on the homepage does not transmit any data to us. Your answers are processed locally in your browser to compute a recommendation, and nothing about your session is sent to a server we operate.
If you email us at [email protected], we receive whatever you include in that email - typically your address and message content - and use it only to respond to you.
Stack Picker saves your quiz answers and your latest result in
your browser's localStorage so a refresh doesn't
lose your place. If you use the "cookie settings" link, your
choice is stored the same way. This data stays on your device, is
never transmitted to us or anyone else. The quiz's "Start over"
button clears your progress, and clearing your browser's site
data removes all of it.
If you use the "Copy link" button on a result, your answers are
written into the link after the # symbol. Browsers
never send that part of an address to the server, so a shared
result link doesn't transmit your answers to us either - they
only travel wherever you choose to paste the link.
We don't set any tracking or advertising cookies ourselves. If you see a cookie banner, it's there so you can tell us whether you're okay with the categories of cookies described below - your choice is stored locally and you can change it any time using the "cookie settings" link in the footer.
This site may display ads served by Google, including through Google AdSense. If it does, Google and its partners may use cookies or similar technologies to serve ads based on your prior visits to this or other websites, and to measure ad performance. You can learn more about how Google uses this data at policies.google.com/technologies/partner-sites, and manage or opt out of personalized advertising at adssettings.google.com or via aboutads.info/choices.
The DM Sans and DM Mono typefaces used on this site are self-hosted - your browser downloads them from stack-picker.com, not from Google, so no font request leaves this site.
If you're in the EU, UK, or another jurisdiction with data protection rights, you can ask us what we hold about you, ask us to delete it, or object to how it's used - though as noted above, we don't hold much beyond what you send us by email. Contact [email protected] for any privacy request. For third-party advertising cookies, use the opt-out links above or your browser's cookie controls.
Stack Picker isn't directed at children under 13, and we don't knowingly collect information from them.
If this policy changes - for example, when ads or analytics are added - we'll update this page and the "last updated" date above.
Questions about this policy: [email protected], or see the contact page. If you're in the UK and unhappy with how a request was handled, you can also complain to the Information Commissioner's Office (ico.org.uk).