Guide Startups

bitrig

Summer 2025 · Active

Vibe code, test, and deploy Swift apps. All from your iPhone.

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Founded: 2025

Team size: 3

About

Bitrig is the only vibe coder that writes native Swift, which is how the top mobile apps are coded. It's like Lovable for iPhone apps. Kyle and Jacob are creators of SwiftUI, Apple's UI framework for building modern iOS apps, and led its development for the past 10 years. Tim was co-founder and designer of Storehouse, where he won an Apple Design Award and was later acquired by Square. Download bitrig from the App Store: https://apps.apple.com/us/app/bitrig/id6747835910

Founders

  • Kyle MacomberFounder

    Kyle is the co-founder and CEO of Bitrig. Before Bitrig, Kyle spent over a decade at Apple where he co-created and led the development of SwiftUI. He also managed teams behind Swift Charts, WidgetKit, and the Swift Standard Library. Kyle holds a degree in Computer Science from Stanford University.

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  • Tim DonnellyFounder

    Co-founder at Bitrig. Previously SwiftUI at Apple, Square, co-founder at Storehouse (acquired by Square). BFA Design, University of Washington.

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  • Jacob XiaoFounder

    Jacob is a co-founder of bitrig. Before bitrig, Jacob spent 15 years at Apple, where he co-created and led the development of SwiftUI. He also contributed to Xcode and UIKit during his time there. Prior to Apple, Jacob built Opacity, a graphical design tool.

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