Vectisify
n8nOpenAIEmail automation

Calculadora ROI

A financial diagnostic, delivered by email, in under a minute.

The problem

A business needed a way to qualify inbound leads with a real financial diagnostic instead of a generic contact form — showing prospects their own numbers (lifetime value, acquisition cost, ROI) before a sales call ever happens.

The solution

An 11-field form feeds a fully automated pipeline: it calculates LTV, CAC, ROI%, the LTV:CAC ratio, a quote, and a pricing tier; converts the quote to the visitor's currency using a live exchange rate; generates three tailored insights with AI; and assembles and sends a branded HTML email — all without a human touching it.

  1. 01Form captures 11 inputs: revenue, leads, ticket size, purchase frequency, marketing spend, hours lost, and more.
  2. 02A configurable parameters step keeps assumptions (like lead-to-customer conversion rate) editable without touching code.
  3. 03A live FX lookup converts the quote to the visitor's local currency in real time.
  4. 04A calculation engine computes LTV, CAC, ROI%, the LTV:CAC ratio, a quote, and a pricing tier.
  5. 05AI generates three tailored insights from the visitor's own numbers — with a rule-based fallback if the AI call fails, so an email always goes out.
  6. 06A branded HTML email is assembled and sent — form to inbox, under a minute.

The result

Tested end-to-end with a realistic e-commerce scenario — correctly detected the top pricing tier, converted the quote to local currency at the live rate, and delivered a complete branded diagnostic email with confirmed delivery.

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