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ThinkVault Tools

Contact Us

Found a calculation issue, outdated data or a tool you would like added? Email us.

Last updated: 19 October 2026

Email & Bug Reports

Email Email us. For a calculation issue, include the tool URL, example inputs, the displayed result and your expected result or source. Do not send passwords, member details or bank records.

Response Times & Fix Workflow

We review incoming messages every business day and typically reply to general inquiries within 1 to 2 business days. Reports involving formula accuracy, public holiday schedules, or regulatory threshold updates are prioritized for code review and automated unit testing, with verified fixes generally deployed within 24 to 48 hours.

Partnerships, citations and privacy

For advertising inquiries, custom enterprise calculator licensing, media citations, or data privacy requests under the Hong Kong PDPO, EU/UK GDPR, or California CCPA, please include 'Partnership' or 'Privacy Request' in your email subject line so we can route your message to the right team member.

Tool options

Add to your home screen

Add to your home screen to open the tools in a standalone window.

Scan the QR code on your phone, open the site and add it to your home screen.

Generating QR code…

https://hkdatalab.com/en

Desktop/Android: if no install button appears, use Install app or Add to Home Screen in your browser menu. Availability depends on the browser.

Some cached pages may reopen offline, but not all pages will work. New pages, updated rates and quotes need a connection.