Privacy Policy
What we collect
oco.kr does not require an account and does not collect personal information such as names or email addresses. Values you enter into calculators and games are processed inside your browser and are not sent to our servers.
Advertising
This site displays advertising served by Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising at Google Ads Settings or aboutads.info.
Access logs
Standard access logs (IP address, browser type, time of access) are kept for a short period for operation and security. Per-tool view counts are recorded only as aggregate numbers that identify nobody.
External services and links
Tools that show live market prices may connect from your browser directly to exchanges' public APIs (Binance, Upbit, Bithumb and others). When they do, that exchange receives the usual connection information.
Affiliate links are marked with rel="sponsored". We are not responsible for the practices of sites we link to.
Contact
Questions about this policy can be sent through the contact page.