Entrepreneur Zach Yadegari Secures $10 Million for Persona
The startup founder, known for selling Cal AI to MyFitnessPal, is developing a new wearable device.
Updated on Oct. 21, 2026 in Youth

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Entrepreneur Zach Yadegari has raised $10 million in a funding round led by Vine Ventures for his latest startup, Persona. The new venture comes after the success of his previous AI-based calorie-tracking app, Cal AI.
Why it matters
The funding highlights continued investor interest in AI-integrated consumer hardware and health-focused technology. Persona aims to expand beyond software by entering the competitive wearable devices market.
Persona has secured $10 million in funding and plans to release a wearable device priced at $179 this December. The device is designed to be activated through a simple button press or wrist movement.
The players
Zach Yadegari
He is a startup founder who previously created the calorie-tracking app Cal AI and the business Totally Science.
Vine Ventures
This is a venture capital firm that led the latest funding round for the startup Persona.
MyFitnessPal
This is a digital health and fitness platform that acquired the Cal AI app in March 2026.
The details
Persona is currently being tested through a beta version available on iMessage. The startup follows Yadegari’s history in the tech space, including the sale of his business Totally Science for $100,000 at age 16 and the acquisition of Cal AI by MyFitnessPal in 2026.
Timeline
2024: Cal AI app was launched.
April 2025: Yadegari revealed he was rejected by 15 universities.
March 2026: MyFitnessPal acquired Cal AI.
8 October 2026: TechCrunch reported on Persona's $10 million funding.
December 2026: Persona plans to release a wearable device.
Culture Shift
The rise of specialized health-focused wearables extends the market trends established by the Apple Watch. Persona's entry reflects a broader consumer demand for seamless, AI-integrated health tracking that moves beyond smartphone apps.
Consumers interested in health technology can monitor the beta release of Persona via iMessage. The forthcoming $179 wearable device will offer users a new physical entry point into Yadegari's AI health ecosystem.
The takeaway
The rapid pivot from a successful software application to hardware development highlights the agility required in modern tech entrepreneurship. Readers looking to launch their own ventures should note the value of scaling AI products to secure institutional backing.
Further reading
For more coverage on emerging entrepreneurs, visit the United States Youth section.
Source note: This article includes information reported by Mint.
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