Privacy Policy

This policy is effective September 14, 2026 and describes the current public website. It applies only to this site and the routes served under its configured domain.

The calculator does not require an account and does not submit starting balances, contributions, rates, time horizons, ages, or goals to site storage. Calculations are performed in the browser.

Clearing the page or leaving the site removes the values shown in the calculator because this site does not save personal projections.

The app stores your selected light, dark, or system theme in localStorage under the key future-value-calculator-theme. This setting remains on your device and can be removed by clearing site data in your browser.

Google Analytics 4 may set first-party analytics cookies such as _ga. The site does not use cookies for advertising profiles.

This site uses Google Analytics 4 (measurement ID G-PPCX7224EE) to measure page views and general usage events. Google may process data such as pages viewed, approximate location, device and browser type, referrer, and pseudonymous identifiers.

The calculator still does not send starting balances, contribution amounts, withdrawal amounts, rates, time horizons, ages, or goals to Google Analytics. No advertising or affiliate tracker is part of the current launch.

Google Analytics 4 may set first-party analytics cookies such as _ga to distinguish visitors. Google handles this data under the Google Privacy Policy and terms; you can also block analytics with your browser or a privacy extension.

The site is delivered through internet infrastructure which may process technical request data such as IP address, user agent, timestamps, and routing information for security, abuse prevention, availability, and logging. Such processing is limited to what is necessary to operate and protect the service.

Source citations link to third-party sites such as FRED and Damodaran. Once you follow an external link, the destination site controls its own privacy practices and should provide its own policy.

The site is intended for general educational use and is not directed to children under 13 as a service requiring personal information because it does not request personal financial information.

Material changes to this policy will receive a new effective date on this page. Continued use after publication means you accept the updated practice.

Privacy questions may be submitted through the public repository issue tracker at https://github.com/LaoZYi/future-value-calculator. Do not include account numbers, balances, or other personal financial information in a public issue.