
He Built a $30 Million App as a Teen. His Next Bet Is a Wearable That Can Switch Off.
Nineteen year old Zach Yadegari sold his calorie tracking app Cal AI to MyFitnessPal after it passed $30 million in annual revenue, The Hustle reported on October 9. He has now raised $10 million for Persona, a privacy first wearable.
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