Privacy policy
Last updated October 21, 2026
What you type stays with you
Your age, savings, spending and income are worked out in your browser. They are never sent to us or stored anywhere.
Hosting
The site runs on Vercel, which keeps standard server logs (such as IP address, browser and page requested) to keep the service running and secure.
Analytics
We use Vercel Web Analytics to count visits and see which pages help people. It uses no cookies, doesn't follow you to other websites, and only reports totals like page, country and device type.
Light or dark mode
If you pick light or dark mode, your browser remembers that choice on your device. Nothing is sent to us.
Cookies and ads
The site doesn't set cookies today. If we add ads (for example Google AdSense), we'll update this page first and ask for your consent where required. Google and its partners may then use cookies to show ads based on your visits to this and other sites, and you'll be able to opt out of personalized ads in Google Ads Settings.
Sharing
The Share button uses your device's share menu or copies the site address. It never shares your numbers, and we don't see what you share or who you share it with.