Contact

The fastest way to reach us is email: hello@truesums.com

Three things we especially want to hear about:

• A wrong number. Tell us the tool, your inputs, and the result you expected — we'll re-check it against its sources and publish the fix.
• A missing tool. Use the request-a-tool form — it goes straight into the list we build from each week.
• Stale data. If a rate or limit we cite has changed, send the updated source.