Terms of use
Updated October 27, 2026
The service
Sellsavo is a browser extension and website that estimate marketplace fees and profit from the page you open and the numbers you enter. Free features are provided as is. Pro is a subscription sold through Gumroad ($12.99 per month or $99 per year) that unlocks additional features in the extension.
Estimates, not advice
Fees are calculated from marketplace fee tables as we understand them on the date shown and may differ from what a marketplace actually charges (promotions, account-specific rates, changes). Sellsavo is not financial, tax or legal advice; check important decisions against your marketplace's statements.
Fair use
Use Sellsavo on pages you open yourself. Don't attempt to reverse-engineer license checks or resell license keys.
Subscriptions and refunds
Every install includes a 7-day Pro trial. Subscriptions renew until cancelled in Gumroad. If Pro doesn't work for you, email support@sellsavo.com within 14 days of a payment for a refund.
Liability
To the extent permitted by law, we are not liable for indirect losses or decisions made based on the estimates. Our total liability is limited to the amount you paid for Pro in the last 12 months.