This policy explains what information Day One Korea (https://dayonekorea.com) collects and how it is used. Effective 2026-10-19.
Information you enter
Numbers and dates you type into our calculators are processed in your browser only. They are not sent to our servers. Some calculators may remember your last inputs in your browser's local storage, which you can clear at any time.
Cookies and advertising
We use Google AdSense to show ads. Google and its partners use cookies to serve ads based on your previous visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to our site and other sites on the internet.
You can opt out of personalized advertising in Google Ads Settings, or opt out of third-party vendors' cookies at aboutads.info. For more, see how Google uses information from sites that use its services.
Visitors in the EEA, UK and Switzerland are asked for consent through a certified consent message before personalized ads are shown.
Analytics and logs
Our host may keep standard server logs (IP address, browser type, pages visited) for security and to measure traffic. We do not sell personal information.
If you email us, we use your address only to reply.
Children
This site is not directed at children under 14 and does not knowingly collect their information.
Changes and contact
We will post any changes on this page. Questions: [email protected].