Zach Yadegari, a 19-year-old who finished high school only months ago, founded Cal AI in 2024. The app combines artificial intelligence with calorie-counting features, aiming to simplify nutrition tracking for everyday users. Within two years the service attracted a sizable user base, positioning it as a notable newcomer in the health-tech sector.
Yadegari’s growth strategy centered on a coordinated group of social media influencers who were paid to showcase the app. An early campaign demonstrated the model’s potency when a single post generated roughly one thousand new sign-ups in a 48-hour span. He then accelerated recruitment, compensating creators on the premise that each post would deliver a predictable number of conversions.
The influencer-driven approach translated into more than $30 million in revenue, according to figures disclosed at TechCrunch Disrupt. In March, the company was purchased by MyFitnessPal, though the purchase price was not revealed. The acquisition marked a rapid exit for a startup that had only been operational for two years.
Contracts with the promoters tied compensation to measurable reach and usage targets. Yadegari explained that many of the participants were college students seeking cash, and he offered them a fixed payout contingent on achieving a specified volume of app activity. He emphasized the importance of selecting creators whose audiences formed tight-knit communities, which amplified conversion rates.
During his presentation, Yadegari credited his family for granting him the freedom to pursue the venture, while downplaying the role of formal education. He joked that college is primarily valuable for its social aspects, a remark that elicited laughter from the audience, including his father who was present in the room.
In parallel with Cal AI, Yadegari introduced Persona, an AI-agent startup that has already secured $10 million in financing. The company’s stated mission is to make digital interactions seamless with everyday life, deploying a personal assistant that can operate across iMessage, email, phone calls and other internet-connected platforms. A future hardware ecosystem is also planned to extend the assistant’s capabilities beyond software alone.