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Mobile fitness app built in hours with Claude Code, Pencil, and Expo

March 31, 2026Peter Yang

Peter Yang claims anyone can build a mobile app in a few hours without coding and shares a tutorial for building a personal fitness app using Claude Code with Pencil and Expo.

Anyone can now build a mobile app in a few hours without knowing how to code.
I'll walk you through exactly how to build this using Claude Code, @pencildev, and @expo.
Peter Yang
mobiletutorialclaude code

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