Impact Marvel tools
Useful evidence before bigger decisions.
Free, ungated tools for founders who want to understand ecommerce economics, measurement and acquisition readiness.Free calculator · No signupD2C Profitability & Break-Even ROAS CalculatorModel placed and delivered ROAS, GST, COD/RTO, fulfilment, contribution, maximum CPA and advertising limits.Free self-audit · No signupGoogle Merchant Center Feed Audit ChecklistReview 30 checks covering product data, landing-page consistency, diagnostics, feed quality and Google Shopping readiness.