StretchLearn Course

Understand the numbers that decide whether a SaaS lives or dies

Recurring revenue, churn, CAC, LTV, and the unit economics every operator and investor watches

Beginner9 hr 25 minSelf PacedRegistered

Course Overview

What this course is designed to develop

This course teaches the recurring-revenue model behind subscription software and the metric stack used to run it. You will work through MRR/ARR bridges, gross and net revenue retention, CAC, LTV, payback period, and the Rule of 40 using real formulas and worked examples. By the end you can build and defend a simple SaaS unit-economics model.

Learning Outcomes

What the learner should be able to understand, build, or execute.

01

Explain how the SaaS recurring-revenue model differs from one-time and services revenue

02

Calculate MRR, ARR, and an MRR movement bridge from new, expansion, contraction, and churn

03

Measure customer and revenue churn and distinguish gross from net revenue retention

04

Compute CAC, LTV, the LTV:CAC ratio, and CAC payback period from real inputs

05

Apply benchmarks such as the Rule of 40, magic number, and burn multiple to judge health

06

Build a one-page SaaS metrics model and identify the two or three levers that move it most

Curriculum Preview

Inside the curriculum: a structured path from fundamentals to execution.

Preview the course structure, see how the modules build on one another, and understand the path this program is designed to take you through.

Module 1

Module 1: How the SaaS Recurring-Revenue Model Works

What makes software-as-a-service different from selling a license or a service, and why recurring revenue changes every financial decision.

3 lessons
From Licenses to Subscriptions: Why the Model ChangedContent · 45 min
Preview Enabled
Subscription, Usage, and Hybrid Pricing ModelsContent · 45 min
LMS Access
The SaaS P&L and Why Gross Margin Drives EverythingContent · 50 min
LMS Access
Module 2

Module 2: MRR, ARR, and the Revenue Movement Bridge

The two headline recurring-revenue numbers and how to decompose their growth into new, expansion, contraction, and churn.

3 lessons
Calculating MRR and ARR CorrectlyContent · 45 min
LMS Access
The MRR Movement Bridge: New, Expansion, Contraction, ChurnContent · 50 min
LMS Access
Cohorts and the Quick Ratio: Diagnosing Growth QualityContent · 45 min
LMS Access
Module 3

Module 3: Churn and Retention: The Make-or-Break Metrics

How to measure customer and revenue churn, the crucial difference between gross and net revenue retention, and why retention compounds.

3 lessons
Customer Churn vs Revenue ChurnContent · 45 min
LMS Access
Gross and Net Revenue RetentionContent · 50 min
LMS Access
Reducing Churn: Levers That Actually Move the NumberContent · 45 min
LMS Access
Module 4

Module 4: Unit Economics and the Benchmarks That Judge a SaaS

CAC, LTV, payback period, and the efficiency benchmarks such as the Rule of 40 and burn multiple that decide whether a SaaS is fundable.

3 lessons
CAC, LTV, and the LTV:CAC RatioContent · 50 min
LMS Access
CAC Payback Period and Why Cash Timing MattersContent · 45 min
LMS Access
The Rule of 40, Magic Number, and Burn MultipleContent · 50 min
LMS Access

Built for Application

A complete learning path, not a one-off inspiration hit.

This program is designed around progression: focused lessons, structured modules, applied resources, assessments, and a course rhythm that turns information into usable capability.

SaaSMRR ARRchurn retentionCAC LTVunit economicssubscription businessRule of 40SaaS metrics