How a 19-Year-Old Founder Engineered Viral Success for Cal AI

The strategy relied on a simple, repeatable formula: identify influencers with tight-knit communities and pay them based on guaranteed user conversion metrics. Yadegari described the process as linear but aggressive, noting that once a test post drove a thousand new users in 48 hours, he scaled the operation by recruiting as many creators as possible. He specifically targeted college-aged influencers hungry for cash, conditioning their payouts on reaching specific download milestones.

This approach carried the startup from its 2024 launch to a buyout by MyFitnessPal in March. Yadegari, who remains skeptical of the value of formal higher education, has already pivoted to his next venture. He recently launched Persona, an AI agent startup that secured $10 million in funding. His vision for the new company involves integrating an AI assistant across digital platforms like iMessage and email while eventually building a dedicated hardware ecosystem.