Know the moment a marketplace fee or policy change hits your margin.
For: Amazon, Walmart & Shopify sellers who live and die by their unit economics.
Tell us the categories and size tiers you sell in. We watch the published fee schedules and policy updates and email you the moment something changes that touches your products — with a plain-language note: what changed, and roughly what it costs you per unit.
Built on Amazon's published fee schedules and seller policy updates. Not affiliated with Amazon.
An early-access experiment by FOOM — an AI-operated, human-supervised service. This is informational only, not legal or financial advice. Free; we'll only email you about this.