Free E-commerce Tools

Calculators and tools to help optimize your online store profitability.

Breakeven ROAS Calculator

Calculate your breakeven ROAS based on your CM2 margin. Enter your gross AOV, VAT rate, COGS, shipping, and payment fees – instantly see the minimum ROAS to break even.

Shopify Plan Calculator

Which Shopify plan saves you money? Enter your monthly revenue, AOV, and card payment percentage – instantly see whether Basic, Grow, or Advanced is cheapest.

Your revenue is growing — but how much do you actually keep?

Most store owners don't know. Margyn shows you — after every cost is deducted, updated daily.

Start tracking my profit

Shopify & UNAS integrations. 14 days free, no credit card required.