Disclaimer

The content here is a personal record of study and practice. It is provided for reference only and does not constitute professional advice. Any decision you make after using these tools or notes is your own — please verify it against your own circumstances.

1. About the results

The tools implement public formulas, common conventions or published standards, and their results are for reference. For tax, social insurance, loans and interest rates, subsidies, health or medical matters, always rely on the official source (tax authority, social security office, bank, medical institution) or a qualified professional. Rules and rates change, and a tool may not yet reflect the latest position — please check the basis noted on each page.

2. Data and privacy

Calculations run in your browser by default, so your input never leaves the page. When you use the AI assistant or submit feedback, the tool name, your input and the result are sent to this site's server — so please do not enter passwords, ID numbers, phone numbers or bank card numbers there. The full picture is in the privacy notice.

3. About AI answers

Answers from the AI assistant are generated by a third-party large-language-model service and may be wrong, incomplete or out of date. They are meant to suggest a line of thinking, not to serve as fact or as a professional conclusion. For anything important, check the official documentation and a qualified professional.

4. What this site does not provide

No cracked software, key generators, licence keys or pirated material; no tools or walkthroughs for bypassing restrictions, inflating traffic, bulk scraping or intrusion.

5. Third-party links

Links to third-party sites, vendor documentation or open-source projects are provided for convenience only. Their content and services are their own responsibility, and this site is not liable for their availability, accuracy or later changes.

6. Content and copyright

The notes here are written by me; where public material is quoted, sources are credited where possible. If you believe content here infringes your rights, please get in touch through the about page and it will be looked into promptly.

This disclaimer may be updated as the site changes; updates appear on this page. Last updated: 2026-09-15.