Online CalcKit

Contact

Questions, feedback, error reports, or suggestions for new calculators — we'd like to hear from you.

Email

bryan@ai-regenesis.com

We aim to respond to all emails within a few working days. For data-protection requests under UK GDPR / EU GDPR, please put "Data Request" in the subject line — we will respond within one month, as required by law.

Postal address

For postal correspondence, please write to our registered office:

  • AI Regenesis Ltd
  • 20 Wenlock Road
  • London
  • N1 7GU
  • United Kingdom

Email reaches us faster than post. Please use email for routine queries.

Company details

  • Company name: AI Regenesis Ltd
  • Registered in: England and Wales
  • Company number: 16376961
  • Company website: ai-regenesis.com

What we'd love to hear about

  • Errors in a calculation — if you spot a result that looks wrong, tell us the calculator, the inputs, and the expected answer. We'll investigate and fix.
  • Calculators we should add — if you keep wishing for a tool we don't have yet, let us know. We're growing the site over time.
  • Regional differences we got wrong — UK / US / EU coverage is best- effort; if a tax rate, threshold, or convention is out of date, we want to know.
  • Mobile or accessibility issues — broken layouts, missing labels, contrast problems. We try to ship clean code; reports help.

Press & partnerships

For press, partnership, or commercial enquiries, please email bryan@ai-regenesis.com with "Partnership" in the subject line.