Privacy Policy
Last updated: February 27, 2026
We designed this site to be simple and respectful of your privacy. This page explains what data is used and where it is stored.
On this page
Device storage
If you choose to save results, they are stored in your browser using localStorage. This stays on your own device and is not sent to our servers.
Saved entries include your input values and estimate range so you can reopen them later. You can delete single entries or clear all saved data anytime on the Saved page.
Analytics
We currently keep tracking minimal. If analytics are enabled in the future, this policy will be updated to explain what is collected, why it is collected, and how you can manage preferences.
External links
Some pages may link to trusted references. Once you leave this site, those websites have their own privacy policies.
Contact
If you have privacy questions, please reach out through our Contact page.
Quick privacy questions
Do you store my data on servers?
No. Saved estimates stay in your browser on this device unless you export them yourself.
How do I delete saved data?
Open the Saved page and delete entries or clear all. You can also clear site storage from your browser settings.