Privacy and cookie policy

Last updated 21 Oct 2026

This policy explains what information is handled when you use this website, operated by Crunch Labs.

What you type into the calculators

All calculations run locally in your web browser. The figures you enter (such as income, MPF or property price) are not sent to us, not stored on our servers and not shared with anyone.

Information collected automatically

Like most websites, our hosting provider may record standard technical information when you visit, such as your IP address, browser type, the page requested and the time of the request. This is used to deliver the site, keep it secure and understand overall traffic.

Advertising and cookies

We may show advertisements provided by Google AdSense and other advertising partners to keep the site free.

  • Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites.
  • Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet.
  • You may opt out of personalised advertising by visiting Google's Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalised advertising at www.aboutads.info.
  • To learn how Google uses information from sites that use its services, see How Google uses information from sites or apps that use our services.

Where required by law (for example for visitors in the European Economic Area or the United Kingdom), we will ask for your consent before personalised ads or non-essential cookies are used.

Managing cookies

You can block or delete cookies in your browser settings. The calculators work without cookies.

Links to other websites

We link to official government pages and other sites. Their privacy practices are their own.

Children

This site is not directed at children and we do not knowingly collect personal information from them.

Your rights

We do not hold personal data about you from the calculators. For data held by advertising partners, please use the opt-out links above or contact those providers. This policy is intended to be consistent with the Personal Data (Privacy) Ordinance (Cap. 486).

Changes

We may update this policy from time to time. The date at the top shows the latest version.