He grew up on food stamps in Ukraine and California. He built WhatsApp and sold it for $19 billion.
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Who Jan Koum is
Jan Koum co-founded WhatsApp, the messaging app that replaced SMS for much of the world. He sold it to Facebook in 2014 for $19 billion.
The struggle
Koum was born in 1976 in Kyiv, Ukraine. He grew up without hot water and stood in line for food. His family immigrated to Mountain View, California, when he was sixteen, supported by food stamps and a janitorial job.
He taught himself programming. He dropped out of San Jose State University and joined Yahoo as an infrastructure engineer. He stayed for nearly a decade, saving money and learning.
In 2009 he bought an iPhone and saw the potential for apps. He and his friend Brian Acton built WhatsApp — simple, ad-free messaging that worked across borders and phone networks.
The turning point
WhatsApp grew through word of mouth. Koum kept the team tiny and refused advertising. He believed users should own their data and that messaging should be simple and reliable.
By 2014 WhatsApp had 450 million users. Facebook bought the company for $19 billion. Koum became one of the wealthiest immigrants in American history.
He later left Facebook over disagreements about privacy and data. He kept his principles even when they cost him money.
“I want to do one thing, and do it really well.”
The principle
Focus beats feature creep. WhatsApp succeeded because it did one thing — messaging — better and simpler than alternatives. Koum’s belief in privacy and simplicity created trust.
Apply it today
Resist the urge to add features that do not serve your core mission. The best products often do less, better. Protect the user experience above everything else.
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