Like millions of fellow 18-year-olds across the U.S., Zach Yadegari spent his summer preparing for college.

Unlike most other freshmen, Yadegari doubts he’ll linger in academia for very long. He’s the co-founder and CEO of Cal AI, a calorie-tracking mobile app he launched from his parents’ home in Roslyn, New York, in May 2024 — and the app’s success to date makes him think he’ll take it full-time well before his class’ graduation date, he says.

Cal AI’s users upload a photo of their food, and the app’s artificial intelligence-based software gives them an estimate of the total calories. The app, which Yadegari says has a 90% accuracy rate, launched in May 2024. It’s free to download in the Apple and Google Play app stores, and a subscription costs $2.49 per month or $29.99 per year.

Cal AI has 30 employees, and brings in roughly $1.4 million in gross profit per month — after the Apple and Google Play app stores take their respective cuts — according to documents reviewed by CNBC Make It. That includes nearly $274,000 in monthly net operating income, a measurement of profit before accounting for taxes and interest.

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