Have an idea for a new business calculator, spotted a bug, or want to share feedback? We would love to hear from you.
Send us your calculator suggestions, bug reports, or partnership inquiries directly via email.
Our calculators are available 24/7 with multi-currency support for founders and operators around the world.
How We Can Help
Need a specific industry formula, unit economics model, or worksheet? Tell us the inputs and outputs you want to see.
Spotted an edge case in a formula or an issue with an A4 PDF report? Let us know so we can fix it right away.
Request a deep-dive guide, ebook topic, or financial template for your business category.
Collaborate with Threeaid to bring free financial literacy tools to startup incubators, communities, and educators.
Quick Answers
No. Threeaid is 100% free and does not use user accounts. You can email us directly anytime without logging in.
Because all calculations run 100% client-side in your browser for privacy, we never see or store your numbers on any server. Always use the "Download Report" button to save a permanent A4 PDF copy on your device.
We review every tool suggestion from founders and operators weekly and prioritize calculators that help the broadest community of small businesses.
