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Questions, bug reports, feature requests, or just want to talk about DV01? We're here to help — no bots, no ticket maze. Every message is read.

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Do you store my balances?

No. All calculators run client-side. Balances stay in your browser memory and, if you save a preset, in localStorage on your device only.

Can I suggest a calculator?

Yes — use the form with subject “Feature Request”. We prioritize by trader impact.

Response time?

Under 24 hours on weekdays. Weekends may be slightly slower.