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← Signal: Tech & AI

19-Year-Old Founder Built Cal AI to $30M Revenue Through Systematic Influencer Strategy

Confirmed1 source · Oct 15, 2026

Zach Yadegari's AI calorie-tracking app grew virally by recruiting and paying influencers at scale, then was acquired by MyFitnessPal.

19-Year-Old Founder Built Cal AI to $30M Revenue Through Systematic Influencer Strategy
Image via TechCrunch

What happened

Zach Yadegari, 19, founded Cal AI in 2024 and grew it to over $30 million in revenue within two years primarily through a coordinated influencer marketing strategy. The company was acquired by MyFitnessPal in March for an undisclosed amount. Yadegari described the strategy as identifying influencers with tight communities, negotiating performance-based payment rates, and scaling rapidly—finding that each post generated a predictable conversion rate. He stated that success came after an early influencer post brought approximately 1,000 new users over two days, validating the approach and prompting aggressive expansion of the influencer network.

Context

The strategy Yadegari employed reflects a shift in app growth tactics toward performance-based influencer partnerships rather than traditional marketing. By targeting 'broke college kids' seeking cash and leveraging quantifiable audience reach, Cal AI converted social influence into user acquisition on what Yadegari characterized as a linear, predictable basis. The rapid acquisition by MyFitnessPal and subsequent launch of Persona—a new AI agent startup that raised $10 million—suggests that early success in influencer-driven growth and viral adoption has positioned Yadegari as a prominent founder in AI-driven consumer apps despite his recent high school graduation.