Zach Yadegari: Selling Cal Ai for millions at 18-years-old

2 Mar 2026 · 64 min
1:04:17

In this interview, 18‑year‑old founder Zach Yadegari walks through the rapid rise and acquisition of his health‑app startup Cal AI by MyFitnessPal. He shares concrete metrics – $30 M in 2025 revenue, a $50 M ARR run‑rate, a 1.5‑year timeline from launch to exit – and details the growth engine that powered that success: a mix of user‑generated content, high‑budget Meta/TikTok ads with custom App Store product pages, an affiliate program, and marquee influencer deals (including MrBeast). Yadegari explains how his small team of ~30 staff and contractors executed rapid iteration, creative scaling, and attribution via AppsFlyer. The conversation then shifts to the personal side of entrepreneurship: the role of unwavering self‑belief, using present‑tense affirmations from childhood, and the mental habits he credits for his confidence. He describes his raw, unedited YouTube channel as a “documented journey” that shows the day‑to‑day uncertainty of building a company, aiming to prove that anyone can replicate his path. Finally, he teases post‑acquisition plans – a coordinated media push and a Twitter‑takeover – and invites aspiring app founders to follow him on X and YouTube for ongoing insights.

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