From High School Side Project to a $30M Acquisition β Before Age 20
What happens when the app you started in high school goes viral?
For Zach Yadegari, the answer came fast and loud: more than 15 million downloads, $30 million in annual revenue, and an acquisition by MyFitnessPal β all before his 20th birthday. Yadegari was just 17 when he co-founded Cal AI, the AI-powered nutrition app that lets users track what they eat simply by snapping a photo.
But those headline numbers leave out the part most founders actually want to know: How did Cal AI generate that kind of viral attention in the first place? And once millions of users showed up, how did the company convert that momentum into something durable?
Zach Yadegari Takes the Builders Stage at TechCrunch Disrupt 2026
At TechCrunch Disrupt 2026, Yadegari will take the Builders Stage for a fireside chat titled "How to Create Viral Growth and Capitalize On It." He'll dig into Cal AI's rapid rise, the product pressure that came with overnight scale, and the hard work of turning breakout attention into lasting retention and long-term company building.
Image Credits: TechCrunch
Why This Conversation Matters in 2026
The AI app boom has made viral moments more achievable β and more fleeting β than ever. In a market flooded with AI-powered consumer tools, the founders who win aren't just the ones who catch a wave; they're the ones who build something users keep coming back to. Yadegari's story sits at the center of that challenge: a teenage founder whose photo-based calorie tracking app broke through a crowded health-tech space, scaled to tens of millions in revenue, and ultimately landed inside one of the category's biggest incumbents.
Trying to Break Through a Crowded Market?
If you're building in a saturated category and looking for an edge, this session is built for you. Join Yadegari and other founders at TechCrunch Disrupt 2026 to learn what it really takes to spark viral growth β and, more importantly, how to keep it.