Cal AI’s 19-year-old founder just raised $10M for his new AI startup
Cal AI co-founder Zach Yadegari, 19, has launched Persona, a personal AI assistant startup that has raised $10 million. The funding follows his departure from MyFitnessPal, which acquired Cal AI in March after the calorie-tracking app generated more than $30 million in annual revenue in under two years.
Persona combines an assistant available through iMessage with a planned $179 wearable band, expected in December. Unlike always-listening devices, the band is activated by a button or wrist movement; the company says data is encrypted and can be deleted, while purchases require user approval. Persona is in a free beta with a few thousand users and has earned five figures in band pre-orders; its business model includes sponsored shopping results.
- Cal AI co-founder Zach Yadegari raised $10 million for Persona.
- Persona plans a $179 assistant band for December.
- Its free iMessage beta has a few thousand users.
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AI assistants are software tools that respond to requests and help with tasks such as finding information or making plans. They can run on phones or other devices, and may use personal information to tailor their replies.
Persona is a new company founded by Zach Yadegari, who previously co-founded Cal AI, a calorie-tracking app. Cal AI was acquired by MyFitnessPal, a company that offers another calorie-tracking service.
Persona’s planned wristband is designed to work alongside an assistant on iMessage, Apple’s messaging service. The product raises questions about how personal data is collected and protected, and how sponsored shopping results may shape what users see.
Both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
Persona could make AI assistance more useful by fitting it into familiar messaging and a wearable, while its activation controls, encryption, deletion options and purchase approval aim to give users some control over sensitive data and actions. The funding and early interest suggest investors and customers see potential in a product that could help people manage everyday tasks with less friction.
The case against
A wearable assistant that gathers personal context may still create privacy and security risks, even when it is not always listening and offers deletion controls; users may also find it difficult to understand or verify how their data is handled. Sponsored shopping results could blur the line between impartial assistance and advertising, while a costly device and unproven beta leave open whether the product will deliver enough value to justify its price.
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