Frequently Asked Questions
Quick answers about the tools, privacy, and results.
Last updated: 2026-08-02
Are the tools free?
The currently published tools are free to use.
Are my inputs uploaded?
Most tools process inputs only in the browser. A page will say so if an external service is required.
Are results guaranteed?
No. Verify important financial, investment, legal, medical, or engineering decisions with official data and qualified advice.
Why are there English and Traditional Chinese pages?
Both languages use the same calculation core, with separate URLs for search and sharing.
Can I request a tool?
Use the contact page and describe the purpose, inputs, and expected output.