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

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

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

Active Founders

Kyle Macomber

Founder

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.

Kyle Macomber

Founder

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.

Tim Donnelly

Founder

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

Tim Donnelly

Founder

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

Jacob Xiao

Founder

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.

Jacob Xiao

Founder

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.

Company Launches

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

See original launch post

Hi! We’re Kyle, Jacob, and Tim, the co-founders of Bitrig.

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.

Download on the App Store today!

https://youtu.be/e-DqSVEI50w

We’re longtime Apple veterans:

Kyle and Jacob are co-creators of SwiftUI, the framework Apple says is the “the best way to build an app,” and led its development for the past 10 years.
Tim was a co-founder and designer of Storehouse, where he won an Apple Design Award and was later acquired by Square. At Apple he rewrote the fluid animation system that powers the experience of 1.5 billion iOS users worldwide.

Bitrig lets you build native apps for your phone, on your phone. Just by chatting with AI.

If you’re a designer or PM, Bitrig lets you use the same technology as the developers on your team. If you’re a student, Bitrig is the easiest possible way to get started with Swift.

It’s fast, it’s fun. You can make a change to your app anytime and anywhere inspiration strikes. And it’s as easy to share your creation as airdropping a photo.

Bitrig is a one-stop shop. Vibe code, test, and deploy Swift apps. No Xcode required.

Download on the App Store today!

Behind the scenes: To make Bitrig possible we wrote a custom Swift interpreter. Kind of a crazy thing to do. But the best mobile apps use the native SDK directly, and we wanted to make that level of quality as accessible as possible.