bitrig was founded by Kyle Macomber, Tim Donnelly, Jacob Xiao in 2025.

Who are bitrig's investors?

bitrig's investors include Y Combinator.

Where is bitrig headquartered?

bitrig is headquartered in San Francisco, US.

bitrig

San Francisco, US · Founded 2025 · 3 employees · 1 known investors

Bitrig is an AI-assisted development tool for building native applications. Built by former members of Apple's SwiftUI team, it enables developers to create high-quality, polished apps with reduced complexity.

Also known as Aurelia

AI & Machine Learning Developer Tools Enterprise SoftwareUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S25)

bitrig was founded in 2025 by Kyle Macomber, Tim Donnelly, and Jacob Xiao.

Kyle Macomber in 𝕏Co-founder & CEOPreviously, he spent more than ten years at Apple leading development of SwiftUI and managing teams working on Swift Charts, WidgetKit, and the Swift Standard Library. He holds a degree in Computer Science from Stanford University.

Tim Donnelly in 𝕏Co-FounderTim Donnelly worked on SwiftUI at Apple and Square, and previously co-founded Storehouse, which was acquired by Square. He holds a BFA in Design from the University of Washington.

Jacob Xiao in 𝕏Co-founder, EngineeringJacob Xiao spent 15 years at Apple where he led development on SwiftUI and contributed to Xcode and UIKit. He previously built Opacity, a graphical design tool, and is now co-founding bitrig.

Investors · 1

Y CombinatorSan Francisco · $500K

Competitors · 3

by search overlap

AppMySite5 shared keywordsA no-code mobile app development platform that enables businesses to build custom iOS and Android applications by configuring pre-built features like authentication, commerce, navigation, and device access without writing code.

MindBody5 shared keywordsMindbody provides software and a consumer app platform for fitness, beauty, and wellness businesses to manage operations, attract clients, and book classes and appointments. The platform connects thousands of wellness businesses globally with consumers.

Vocal5 shared keywordsVocal is a creator platform that enables writers and artists to publish content and monetize their work through reader support and community engagement.

Companies competing with bitrig for the same Google search keywords, organic and paid, via search-intersection analysis.

In the news

Bitrig – Vibe code, test, and deploy Swift apps. All from your iPhone.ycombinator.com · Aug 2025

Frequently asked questions

What does bitrig do?: Bitrig is an AI-assisted development tool for building native applications. Built by former members of Apple's SwiftUI team, it enables developers to create high-quality, polished apps with reduced complexity.
Who founded bitrig?: bitrig was founded by Kyle Macomber, Tim Donnelly, Jacob Xiao in 2025.
Who are bitrig's investors?: bitrig's investors include Y Combinator.
Where is bitrig headquartered?: bitrig is headquartered in San Francisco, US.