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Why WhatsApp Slowed Its Own Growth: Lessons from Jan Koum

Writer's picture: Startup BellStartup Bell

Jan Koum, the co-founder of WhatsApp, is known for his unconventional yet wildly successful strategies. In an era when every startup was chasing explosive growth, Koum and his team decided to slow things down. This counterintuitive approach helped WhatsApp grow into one of the most widely used messaging platforms in the world, boasting over two billion users today. Let’s explore why Koum believed in this bold strategy and what startups can learn from it.


Jan Koum, co-founder, WhatsApp
Jan Koum, co-founder, WhatsApp

The Surprising Logic of Charging a Dollar

In the early 2010s, charging for consumer apps was seen as a death sentence for growth. WhatsApp went against the grain, asking users to pay a nominal $1 fee. Critics argued this would kill their virality, but Koum had a different perspective.


The dollar fee wasn’t just about revenue—it was a lever to control growth. By charging a small fee, WhatsApp intentionally slowed its user acquisition rate. Why? To ensure their infrastructure could handle the load without compromising the user experience.


The Power of Prioritizing Existing Users

While other apps were racing to scale, WhatsApp focused on keeping its existing users happy. Koum and his team wanted to:

  • Build servers that wouldn’t crash.

  • Ensure messages were delivered reliably.

  • Maintain a fast, seamless app experience.


This decision mirrored Facebook’s early strategy of limiting access to college students. By focusing on smaller, manageable groups, they could fine-tune their product before expanding.

For example, imagine a restaurant that prioritizes the dining experience of its current customers instead of rushing to open more locations. WhatsApp took a similar approach: perfect the experience first, then grow.


Criticism and Conviction

Koum admitted that many people told them they were doing it wrong. “You should be growing as fast as you can,” they said. But WhatsApp stayed the course, betting on quality over quantity. This commitment paid off, creating a loyal user base that fueled their growth when the time was right.


What Startups Can Learn from WhatsApp

  1. Don’t Chase Growth at All Costs: Scaling too fast can break your product and alienate users. Focus on building a strong foundation first.

  2. Charge for Value: Charging a small fee, like WhatsApp’s $1, can act as a filter to attract serious users and control growth.

  3. Quality Beats Quantity: A product that delights its users will naturally grow through word of mouth. Happy users are your best marketers.


The Legacy of Slowing Down

Today, WhatsApp’s strategy is a masterclass in sustainable growth. By resisting the pressure to grow too quickly, Koum built a product that could scale without sacrificing reliability or user trust.

For startups, the lesson is clear: Sometimes, slowing down is the fastest way to succeed.


Watch Jan Koum:

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