Privacy policy
Last reviewed by Alex
Last updated October 23, 2026.
What we collect
This site has no accounts, forms or comment system, and our calculators run entirely in your browser; nothing you type is sent to us. Our host (Cloudflare) processes standard server logs such as IP address and user agent for security and performance.
Cookies
We don't set advertising or tracking cookies. When you click an affiliate link, the retailer (for example Amazon) may set cookies under its own privacy policy to attribute the purchase.
If you email us, we use your message only to reply.