Zach Yadegari, founder of the AI-powered calorie tracking app Cal AI, is 19 years old and has quickly made his company prominent online. Cal AI was founded in 2024 and generated more than $30 million in revenue over its first two years.
Influencers as the growth engine
Speaking at TechCrunch Disrupt on Thursday, Yadegari explained that much of Cal AI’s rapid rise came from an aggressive influencer strategy. An early indicator that the approach could work was when a single influencer’s post brought roughly a thousand new users within two days. After that, the company focused on recruiting and paying as many influencers as possible to post about the product.
Yadegari described the model as ‘‘pretty linear’’: each post produced a predictable number of viewers who would convert to users. Part of their approach was negotiating payment terms with influencers, promising specific payouts for hitting predetermined reach or usage targets and asking them to keep posting until those targets were met. He noted many influencers were "broke college kids" primarily motivated by cash, so straightforward payment offers were effective.
Finding influencers with tightly knit communities was another key factor, since their reach could be quantified and the impact measured.
Acquisition and a new startup
Cal AI was acquired by MyFitness in March for an undisclosed amount. Yadegari said the company had surpassed $30 million in revenue in two years.
Earlier this month he also launched Persona, a new startup focused on personal AI agents. Persona has already raised $10 million. Yadegari described Persona’s ‘‘overarching mission’’ as making computing seamless with human life: the personal AI assistant will be available anywhere with an internet connection, including iMessage, apps, email, and phone calls. He added that the company plans to build a hardware ecosystem around the app as part of what will distinguish the offering.
Personal notes
Yadegari acknowledged his family’s support — his father was in the audience — and credited them with giving him the freedom to pursue his ambitions. Asked about higher education, he said (to laughter) that the main reason to go to college is to have a fun social time as a young person, implying it was not central to his entrepreneurial path.
Why it matters
Cal AI’s trajectory demonstrates how paid influencer campaigns can quickly drive user growth and revenue for emerging AI consumer apps. The MyFitness acquisition and Yadegari’s new venture Persona illustrate how a young founder can leverage early traction and capital to expand into further products and services.
