Lenny's Podcast

5 questions to ask when your product stops growing | Jason Cohen (2x unicorn founder)

with Jason Cohen
25 Jan 2026 22 min read 1h 18m
TL;DR

When product growth stalls, the first diagnostic question must be whether customers are leaving—not because of budget constraints but because you're fundamentally failing to deliver on your promise. High churn creates an automatic ceiling on company size since cancellations grow exponentially with your customer base while marketing efforts grow linearly, making churn the first and most critical lever to fix before pursuing other growth tactics.

Key Moments
Jason Cohen
“There's a series of questions that I ask to diagnose why is growth slowing. The first question is, are customers leaving?”
Cohen introduces his diagnostic framework for identifying why product growth has stalled
▶ 0:05
Jason Cohen
“Think about the gauntlet they went through to get to the product. How do they even find out about me? That was hard already and improbable. They didn't just bounce off the homepage, which is again improbable. And they got to the pricing page that didn't scare them off. They actually had the budget and bought the stupid thing. And after all of that, which clearly means they wanted it to work, they're like, 'No, buy what?' Like, like just on an emotional level, you got to go, 'Wait a minute, that's terrible.'”
Cohen emphasizes the visceral realization that losing customers after they navigate the entire sales funnel indicates a fundamental product failure
▶ 12:25
Jason Cohen
“Cancellations automatically grow as you grow. Even if you're doing everything right, but marketing doesn't. Marketing grows only as fast as you can improve marketing. We all know that's quite hard actually.”
Cohen explains why churn creates an automatic ceiling on growth—the mathematical inevitability that cancellations will eventually overwhelm acquisition efforts
▶ 15:34
Jason Cohen
“It's too expensive is often the number one or at least like top three reason in one form or another. And that is never ever ever the reason. How do I know? Because they already looked at your homepage, read all the stuff, saw what you promised, looked at the pricing page, and decided to buy it.”
Cohen challenges the common assumption that customers cancel due to price, arguing this misses the actual root causes of churn
▶ 20:41
Jason Cohen
“If your software was more successful and the project was more successful, would it have have ended or is that actually an indicator that your product wasn't that useful or didn't do its job?”
Cohen argues that 'project ended' cancellations may reflect poor product fit or wrong market segment selection rather than circumstances beyond your control
▶ 24:19
About Jason Cohen
›
Jason Cohen is a four-time founder, including two unicorns (WP Engine and others), and an accomplished product strategist who has invested in approximately 60 startups. He has been writing in-depth essays on product and business strategy at smartbear.com for nearly 20 years, publishing around 300 pieces on topics ranging from product development to growth strategy. His upcoming book, "Hidden Multipliers," explores leverage points in building successful companies.
Takeaways
1
Churn creates an automatic growth ceiling Because cancellations grow exponentially with your customer base (as a percentage) while acquisition efforts grow linearly, there's an automatic maximum company size: new customers added per month divided by churn rate. At 5% monthly churn adding 100 customers/month, you'll never exceed 2,000 customers. This mathematical reality means churn must be addressed before pursuing any other growth strategy.
2
"Too expensive" usually masks deeper product failures Customers who cancel citing budget constraints already evaluated pricing and bought anyway—meaning something else broke. Dig deeper by asking "what made you cancel?" instead of "why did you cancel?" and follow up multiple times like root cause analysis in healthcare. The real reasons often involve unmet promises, missing integrations, or poor onboarding rather than actual affordability.
3
Focus churn reduction efforts on early onboarding Almost all SaaS companies see the highest cancellation concentration in the first 30-90 days, and small onboarding improvements have disproportionately large effects on overall retention. Similar to how a 5% improvement in YouTube video retention in the first 30 seconds can increase overall completion by 20-30%, improving early activation often yields the highest return on retention investment.