Free Tool
CAC / LTV Calculator
Acquisition cost vs lifetime value. See your LTV:CAC ratio, payback period, and whether your ad math actually works at scale.
Healthy LTV:CAC is 3× or higher. 1×–2× signals you're acquiring unprofitably; sub-1× means every customer loses money. Payback under 12 months keeps cash flow workable for self-funded stores.
Want the full picture?
Tacey runs this on every order, automatically.
This tool gives you a one-off snapshot. Tacey watches every order the moment it's placed, catches problems before they ship, and recovers customers without you lifting a finger.
Install Free on ShopifyContinuous
Every order checked the moment it's placed - not just when you remember to run the calculator.
Automatic
Bad addresses fixed before they ship. Customers contacted without you lifting a finger.
Compounding
Trusted addresses learned over time. Repeat customers skip checks. Faster fulfillment, fewer reships.
Other free tools
Run the rest of the math
Profit Margin
Margin, markup, and gross profit - the three numbers every operator should know cold.
Conversion Rate
Conversion rate + revenue per visitor + monthly revenue from your traffic and order data.
Cart Abandonment
How much revenue you're leaving on the table - and what 10–20% rescue rates would recover.
Address Validator
Paste a shipping address, get instant deliverability + suggested fix. The tool we built for ourselves.
Bad-Address ROI
Plug in your monthly orders and undeliverable rate. See exactly what bad addresses cost you.
Email Preview
Side-by-side: vanilla Shopify confirmation vs the Tacey-style fix-page email.
Free Shipping Threshold
Recommended threshold + projected lift in average order value, from your AOV distribution.
Theme Detector
Paste any storefront URL, find out which Shopify theme it uses (and which version).
Sales Estimator
Directional estimate of how active a Shopify store is, based on public catalog data.
Tool slug: cac-ltv-calculator