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LTV, CAC & Payback Period Calculator

Model customer LTV, CAC payback and retention scenarios through day 180.

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Overview

Predictive LTV & Payback Calculator is a free decision-support tool for analyzing customer economics beyond a simple LTV formula. It models contribution LTV through D90 and D180, CAC payback, retention behavior and alternative growth scenarios.

Use it to evaluate how acquisition cost, gross margin, retention and customer value affect payback economics before increasing marketing spend. The calculator also helps identify the improvement required to reach a target LTV or payback outcome.

Short description

Free predictive LTV and CAC payback calculator for modeling customer economics, retention, contribution LTV and payback scenarios. Compare assumptions, stress-test growth plans and understand how changes in CAC, margin and retention affect unit economics.

Sources behind this listingSee source links, recorded dates and owner corrections.

Observed facts come from public pages. Founder-edited facts are supplied by the verified owner. AI-inferred facts are model interpretations; derived facts are calculated from other data. A source link lets you check the current page. It does not guarantee the fact is still current.

Dates show when a record was saved. Some older records use the listing’s update date; they are not proof of a fresh check. Missing source records are shown explicitly.

TaglineModel customer LTV, CAC payback and retention scenarios through day 180.
Founder-editedRecorded Source: tools.lazarevych.com
DescriptionPredictive LTV & Payback Calculator is a free decision-support tool for analyzing customer economics beyond a simple LTV formula. It models contribution LTV through D90 and D180...
Founder-editedRecorded Source: tools.lazarevych.com
Starting priceFree
Founder-editedRecorded Source: tools.lazarevych.com
Free planYes
Founder-editedRecorded Source: tools.lazarevych.com
Free trialNo
Founder-editedRecorded Source: tools.lazarevych.com
Pricing modelquote_only
AI-inferredRecorded Source: lazarevych.com
Plan: Growth Analytics AuditCustom
AI-inferredRecorded Source: lazarevych.com
Plan: Analytics & Tracking ImplementationCustom
AI-inferredRecorded Source: lazarevych.com
Plan: Growth Analytics PartnerCustom
AI-inferredRecorded Source: lazarevych.com
Plan: GA4 ImplementationCustom
AI-inferredRecorded Source: lazarevych.com
Plan: Google Tag Manager SetupCustom
AI-inferredRecorded Source: lazarevych.com
Plan: Server-Side GTM SetupCustom
AI-inferredRecorded Source: lazarevych.com
Plan: CRM IntegrationCustom
AI-inferredRecorded Source: lazarevych.com
Plan: BigQuery SetupCustom
AI-inferredRecorded Source: lazarevych.com
SummaryFree predictive LTV and CAC payback calculator for modeling customer economics, retention, contribution LTV and payback scenarios. Compare assumptions, stress-test growth plans ...
Founder-editedRecorded Source link unavailable

Pricing

Pricing recorded 1 October 2026Pricing page
Growth Analytics Audit
Custom
  • Clarity before you invest in analytics implementation.
  • Diagnose measurement, funnel, acquisition, CRM, data-quality and unit-economics
  • A prioritised implementation roadmap and an executive presentation of the findin
Analytics & Tracking Implementation
Custom
  • Design and implement the agreed measurement, tracking, attribution, data and rep
  • A validated, documented measurement system spanning tracking, attribution, data
  • The range reflects that scope is set by systems, integrations and implementation
Growth Analytics Partner
Custom
  • Ongoing analytics leadership and optimisation.
  • Continuous analytics support, tracking maintenance, KPI and performance reviews.
  • An ongoing partnership that keeps measurement reliable and feeds growth decision
GA4 Implementation
Custom
  • A reliable analytics foundation you can trust.
  • Starting from $600.
Google Tag Manager Setup
Custom
  • Clean, maintainable tag management.
  • Starting from $500.
Server-Side GTM Setup
Custom
  • More accurate data and less reliance on client-side tracking.
  • Starting from $500.
CRM Integration
Custom
  • Connect closed deals and revenue back to marketing.
  • Starting from $700.
BigQuery Setup
Custom
  • Marketing, product and CRM data in one place for analysis.
  • Starting from $800.

Key Features

  • Model predictive customer LTV through D90 and D180.
  • Calculate CAC payback using contribution economics.
  • Model customer retention across multiple time checkpoints.
  • Compare Base, Conservative, and Optimistic scenarios.
  • Stress-test how CAC, margin, retention, and customer value affect economics.
  • Calculate the improvement required to reach a target LTV or payback outcome.
  • Visualize retention, LTV progression, and payback crossover.
  • Use transparent methodology and explicit business assumptions.

Who Is It For

Target audience

Mid-sized to large businesses focused on growth optimization, marketing professionals, and analysts looking for detailed insights into conversion funnels and financial modeling.

Best for

SaaS, subscription and growth teams evaluating LTV, CAC payback, retention economics and acquisition scenarios.

–Not for

Teams looking for accounting forecasts or a replacement for cohort-level financial and customer data.

Strengths & Weaknesses

Strengths
Easy to useGenerous free planClean, modern interface
Weaknesses
Weak or missing APINo offline modeLimited language support

Classification

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How we sourced this: Observed fields () were crawled from https://tools.lazarevych.com when recorded. Source links and dates are available above. AI-inferred fields () were generated by gpt-4o-mini and are always labelled, never presented as measured fact. Founder-edited fields () have been corrected by the verified owner. Last updated: 1 October 2026. Site availability checked: 30 September 2026.