Zach Yadegari

Zach Yadegari builds Persona, a personal AI assistant designed for iMessage and a wearable band, which raised $10M led by Vine Ventures in October 2026. Previously co-founded Cal AI, the calorie-tracking app acquired by MyFitnessPal.

Career

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Elsewhere

Persona

Until Present

Founder

Founded Persona, a personal AI assistant available on iMessage and through the Persona Band.

Cal AI

Until 2026

Co-founder and Chief Executive Officer

Co-founded and led Cal AI, a photo-based calorie-tracking app acquired by MyFitnessPal.

Totally Science

Jan 2022 — Jan 2024

Founder and CEO

Columbia University

University of Pennsylvania

Roslyn High School

High School Diploma

Self-taught

Products & media

techcrunch.com

Cal AI's 19-year-old founder just raised $10M for his new AI startup (TechCrunch)

TechCrunch on Persona's $10M raise led by Vine Ventures and its wearable band.

Writing

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Zach Yadegari

Persona

Cal AI

Totally Science

Columbia University

University of Pennsylvania

Roslyn High School

Self-taught

Products & media

Cal AI's 19-year-old founder just raised $10M for his new AI startup (TechCrunch)

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