The LTV-CAC Operating System
Is your startup growing profitably or burning cash?
Most founders can't answer this. Your LTV:CAC ratio tells you in 60 seconds.
The framework behind:
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Start with the numbers.
The Problem Nobody Talks About
Most companies treat LTV like a metric. In practice, LTV is a responsibility.
Averages feel comforting because they smooth out reality. They give us a number to put in the deck, a benchmark to compare against, a story that sounds like progress.
In real companies, there is a wide grey zone between awareness and ownership. CAC and LTV are known, discussed, and referenced, but they rarely have the power to stop a roadmap item or block a growth channel.
This gap is expensive. It is where assumptions roll forward unchallenged and value slowly leaks out.
Built From Real Experience
Founders and executives who have applied these principles to build billion-dollar companies.
Lech's deep understanding of unit economics was instrumental during our most critical scaling phases at Delivery Hero.
Niklas Östberg
Co-founder and CEO of Delivery Hero
This is not just a masterclass. It is an operational reset. We moved from tracking metrics to governing by constraints.
Lukas Klab
Founder of AnimalHotels
The model forced us to confront the reality of our customer segments. We adjusted our strategy and pivoted based on clear evidence, not gut feeling.
Martyn Szczepankowski
Co-founder of SunRoof
The Frameworks That Drive Profitable Growth
The 4 Quadrants of the LTV-CAC Matrix: Are You in "The Trap"?
If you don't know your exact LTV:CAC ratio by cohort, you are flying blind. This book diagnoses your position (Chapter 7) so you can escape the trap before cash runs out.
Warning: 73% of startups operate in "The Trap" without knowing it. Most discover too late.
Free LTV & CAC Calculators
Know your numbers. Use these free calculators to measure Customer Lifetime Value, Customer Acquisition Cost, the LTV:CAC ratio, and payback period. No guessing - just clarity.
LTV Calculator
Calculate Customer Lifetime Value using ARPU, gross margin, and churn rate. Understand what your customers are truly worth over their entire relationship with you.
CAC Calculator
Measure your true Customer Acquisition Cost - both basic and fully-loaded. Include all costs (marketing, sales, tools, overhead) for an honest picture.
LTV:CAC Ratio Calculator
Calculate the ratio that defines your business health. See if you're building value or burning cash with color-coded benchmarks and recommendations.
CAC Payback Period
Calculate how long it takes to recover your customer acquisition investment. Fast payback means faster growth without burning through cash reserves.
Quadrant Positioning Tool
Plot your position on the LTV-CAC Growth Map. Find out if you're a Star, Trap, Cash Burn, or Bootstrap - and get strategic recommendations.
The Two Numbers That Change Everything
I wrote this book for operators who are tired of treating unit economics as reporting artifacts.
Decision Gates
How to use CAC and LTV as constraints that force clear trade-offs.
The Truth About Averages
How to spot what to cut, what to fix, and what to scale before averages hide the truth.
Governance Over Measurement
How to run leadership decisions without falling into formula theater or vanity growth.
Eliminating Thrash
How to stop priority thrash by connecting roadmap choices to unit economics.
The "No-Brainer" Offer
Choose your path to mastering unit economics
Now available — ships worldwide
Standard Hardcover
The complete book on LTV-CAC mastery
- "The Two Numbers" Hardcover Edition
- Valthentic Basic – 12 months free(worth €108)
- Growth Map positioning
- LTV & CAC calculators
- Value Lens initiative filter
The Growth Bundle
Everything you need to master unit economics
Total value: €655
- "The Two Numbers" (Hardcover)€38
- "The Power of Momentum" (Bestseller)€11
- "Angel in Hell" (Bestseller)€18
- Valthentic Pro – 12 months free€588
- Everything in Basic, plus:
- Cohort analysis & X-Ray diagnostics
- Sensitivity simulation engine
- Pitch deck slide builder
For just €11 more, get 2 bestsellers + Valthentic Pro (€588 value)
"The framework completely changed our approach and helped accelerate our business."
Lucas Klab, AnimalHotels
"The Value Lens framework helped us pivot to a much more profitable customer segment, improving all metrics in our business."
Martyn Szczepankowski, SunRoof
"Working with LTV and CAC has been the key foundation to enable us to grow our business to a global leader in online food ordering."
Niklas Östberg, Delivery Hero
About the Author
Built From Real Experience
Why This Framework Works
Lech Kaniuk executed this system to raise over €150M in capital and achieve successful exits with companies like Delivery Hero, PizzaPortal, iTaxi, and Bean&Buddies.
This book is the result of 20 years of mistakes and wins, compressed into a single manual for operators. From building PizzaPortal (Glovo) to scaling SunRoof, Lech has identified exactly what separates companies that scale from those that burn out.
The LTV-CAC framework is not theory. It is battle-tested across industries, markets, and economic cycles.
Frequently Asked Questions
Ready to Master the Two Numbers?
If your growth metrics never make decisions harder, they are not really in use.