Smart Sellers Tool
    Smart Sellers Tool

    Get in touch

    Contact Smart Sellers Tool

    Have a calculator you wish existed? Spotted a fee that changed? Want to advertise to thousands of sellers calculating profit right now? Send us a note — we read every message and typically reply within 1–2 business days.

    We respect your inbox. Your email is used only to reply to your message and is not shared or sold.

    How we can help

    Calculator requests

    Tell us the platform, the fee you are unsure about, and what take-home question you need answered. Requests from the contact form go straight to the build list.

    Bug reports and fee updates

    Platform fees change often. If a calculation looks off, send a screenshot or link to the new rate — we fix verified reports quickly.

    Advertising and partnerships

    Reaching sellers at the moment they price? Use this form with subject Advertising, or email our partnerships team directly for media kits and placement rates.

    Learn about advertising →

    Response time

    Most messages get a reply within 1–2 business days. Calculator requests are prioritized by how many sellers would benefit.