# Cal AI

> Cal AI grew through paid creators and reported over $40 million in trailing-year sales.

- Owner: MyFitnessPal (acquirer); Viral Development LLC (App Store seller)
- Kind: App & software
- Sector: Health & fitness
- Seed date: 2024-04-08
- Milestone date: 2026-03-02
- Date basis: Documented milestone; not a measured attention peak.
- Spread Score: 24 (Niche), v1.3
- Mechanics: Visible in use, Maker origin, Platform jump, Press loop, Controversy

## Summary

Cal AI sold photo-based calorie tracking through paid fitness creators, then added paid ads. Publicity around its student founders brought TV coverage. MyFitnessPal bought the app; its announcement reported over $40 million in trailing-year sales.

## Timeline

- 2024-04-08 — Cal AI / Viral Development LLC (App stores) — Apple's metadata dated Cal AI's first public iOS release to April 8.
- 2024-09-05 — Zach Yadegari (@zach_yadegari) (X) — Yadegari announced that Cal AI had passed $1 million in revenue as he began his senior school year.
- 2024-11-09 — BusinessDay (Press) — BusinessDay profiled the teenage founders and their direct relationships with influencers.

The full timeline, metrics and sources are on the case page, or via the Pro API (https://howitspread.com/mcp#api).

Canonical URL: https://howitspread.com/cases/cal-ai

Cite as: How It Spread (2026). “Cal AI.” Case HIS-01705. Spread Score v1.3: 24/100. Updated 2026-10-26. https://howitspread.com/id/HIS-01705