Privacy and contact

Contact and corrections

Kalkulatorz maintains these independent calculators. To report a wrong result, ask about a source, stop newsletter emails or request removal of your subscription, email us. Include the calculator link and a non-sensitive example where possible.

Your calculations

Calculations run in your browser. Our calculator usage events do not include the salary, financial amounts or other input values you enter. Theme and language preferences are stored in your browser; session storage helps avoid counting the same action twice.

Jodoh results put selected filters into the page URL so they can be restored or shared. Those values can appear in browser history, a copied link and requests when that link is opened. Share only what you are comfortable making visible. Other calculators’ Share link buttons share the page address.

Usage and site delivery

We use a first-party visitor cookie, kz_vid, with a lifetime of up to one year. We keep hourly visit records for 35 days, hashed visitor identifiers for up to 35 days after their last recorded visit, and calculator funnel events for 120 days. Aggregate totals may be kept longer. These event records exclude raw IP addresses, email addresses, calculator inputs and full referring URLs.

Cloudflare provides site delivery, security and performance measurement; Resend delivers subscription confirmation emails. Delivery and abuse prevention process request information such as IP address and browser details. Our first-party usage tracking skips requests carrying Do Not Track or Global Privacy Control signals.

Email subscriptions

Subscribing stores your email address and sends a confirmation through Resend. Confirmation links expire after 24 hours. Only confirmed addresses are eligible for newsletter updates about calculators and rule changes. Unconfirmed addresses remain pending until confirmed or removed on request.

Your choices

Email [email protected] from the subscribed address to stop updates or request removal. You can clear this site’s cookies and local storage in your browser and enable privacy signals. We may need enough information to verify a removal request. Please do not send identity documents or sensitive financial details.

How we review estimates

Each calculator links to its rule sources and states its assumptions. A rule snapshot date describes the captured rules; a source-link check only confirms whether a page was reachable. A live-feed date describes the latest fetched observation. These dates do not mean every formula was reviewed on that day. We verify reported issues against source material and regression examples before updating the relevant model.