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Profitability 
Revenue 
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E-commerce 
Daniel Kerr
SaaS & Growth Editor
Covers SaaS metrics, subscription economics, and startup growth. Turns unit economics into decisions founders can act on.
Background in SaaS operations and financial modeling. Has worked with early-stage startups on CAC/LTV optimization, churn analysis, and pricing strategy.
Articles by Daniel Kerr
10 articles published
Growth Metrics How to Validate a Startup Idea Before You Build It (2026 Playbook)
A 5-step framework to validate a startup idea before you write a line of code — including the kill criteria most founders skip until it's too late.
Growth Metrics Break-Even Analysis for Startups in 2026: When Burn Becomes Profit
Most startups calculate break-even once in a pitch deck and never revisit it. Here is how to model it properly, the benchmarks by industry, and the three levers that move it.
Growth Metrics How to Calculate ROI in 2026: The Formula, the Pitfalls, and What Good Looks Like
ROI is the most-used and most-abused metric in business. The formula is simple. The inputs are where teams go wrong. Here is how to calculate it honestly, with benchmarks by investment type.
Growth Metrics Vibe a Business (4/4): The Only Metrics That Matter After You Ship
You launched. People are paying. Now what? The seven numbers every solo SaaS founder needs to track, what healthy looks like, and when to worry.
Growth Metrics Burn Rate vs Runway: How to Read the Room
Runway is the wrong number to optimize. Default Alive, burn multiple, and the three levers that move runway more than cutting costs.
Growth Metrics CAC vs LTV: The Only SaaS Ratio That Matters (and the Four Ways It Lies)
The 3:1 ratio everyone quotes, the four traps that catch teams who cleared the basics, and the payback-period sanity check to run alongside it.
Growth Metrics What Is a Healthy SaaS Profit Margin in 2026?
The three margins SaaS founders should track, the Rule of 40 sanity check, and what "healthy" actually looks like at seed, Series A, and scale.
Pricing Vibe a Business (3/4): Pricing AI-Powered Products When Every User Costs You Money
Fixed monthly pricing with variable AI costs is a recipe for losing money on your best customers. Here are four pricing models that actually work for AI products, with worked examples.
Growth Metrics Vibe a Business (2/4): The Token Tax — Why Every AI Feature Costs More Than You Think
Traditional SaaS has near-zero marginal cost per user. AI-powered SaaS does not. Here is what the token tax looks like, how it erodes margins at scale, and how to model it.
Pricing Vibe a Business (1/4): The Economics AI Coding Tools Won't Teach You
Vibe coding made building easy. Business is still hard. A framework for solo builders who can now ship in a weekend but need to know if the math works before they start.