Blog

Why do AI coding agents get worse over time? Learn how context windows, context rot, and compaction work, plus simple ways to keep sessions focused longer.

Learn the difference between Swift and SwiftUI, how they work together in Apple apps, and what beginners should learn first when building an iPhone app.

Learn what CloudKit is, how its private, shared, and public databases work, what it costs, and when it makes sense for your first Apple app as a beginner.

TestFlight is Apple’s service for beta testing apps before launch. Learn how builds, tester groups, external review, and the 90-day limit work

The App Store Small Business Program cuts Apple’s commission from 30% to 15%. See who qualifies, how the $1M limit works, and how to enroll step by step

Learn how App Store Optimization uses keywords, screenshots, ratings, and promotion to rank higher and get more app downloads (beginner's guide).

The best interactions in Apple’s software aren’t just about adding new functionality. They’re also deeply satisfying to use. That’s the spirit behind Bitrig’s new 3D simulators.

Set up your app record, archive and upload builds, manage your App Store listing, capture screenshots, and submit for review. All without leaving Bitrig.

Introducing a new logo and wordmark, new app icons for Bitrig and Bitrig Remote, updated typography, and more.

More easily review Bitrig’s work, make your own changes, and keep moving without jumping out to another tool.

Bitrig can now look at your app, interact like a user, and fix what it finds. The result is less back-and-forth and higher quality apps.

Bitrig is turning one during WWDC26. To celebrate, we’re hosting a hackathon and a party. We’d love for you to come.

Make your app’s most important actions and content available from Shortcuts, Siri, and Spotlight. Let people put your app to work in ways you never imagined.

Build with Codex or Claude Code. Connect your ChatGPT or Claude subscription.

Let the character of your app escape its icon and become part of the device itself.

Bitrig can now build native Swift iPad apps with full access to the iPadOS SDK, including rich multi-column layouts, Apple Pencil, and multiple windows.

Bitrig can now build native Swift Mac apps. We're doubling the free tier for a limited time to celebrate Apple's 50th anniversary.

Bitrig is now available for the Mac!

Find out how one developer used Bitrig to make a selfie app for blind and low-vision users.

How Bitrig's interpreter converts Swift constructs into bytecode.

With Bitrig, you can build an app that runs on every Apple platform. Doing that well means keeping your users’ data up to date on all of their devices.

Learn how Icon Composer turns simple layered artwork into a polished Liquid Glass app icon, with practical design tips for iPhone, iPad, Mac, and Apple Watch.

Most apps split the work between a client on the device and a server online. Learn when your app needs a backend and the simplest ways to add one.

App Store Connect is Apple’s hub for publishing and managing apps. App Review, TestFlight, purchases, analytics, reviews, and updates explained for beginners.

Apple Ads (formerly Apple Search Ads) puts your app at the top of App Store search. Learn Basic vs. Advanced and how to spend the $100 credit wisely

You can build iOS apps for free, but the App Store requires the $99/year Apple Developer Program. Here’s what free and paid include and when to upgrade.

Bitrig now automates App Store Connect and RevenueCat, so you can add subscriptions, get paid, and get back to building.

Bitrig now makes it easy to build native Swift apps for every Apple platform, from the smallest screen on your wrist to the biggest screen in your home.

Take Bitrig for a genuine test drive and experience our vision for the future of app development.

Install apps directly on your Home Screen and publish builds to TestFlight from the iPhone in your pocket.

Bitrig can now build with the beta Xcode and SDKs announced at WWDC. Install the beta alongside your stable Xcode and start exploring what’s newly possible.

Spend less time describing what’s on the screen. Point directly at the parts of your interface you want to change.

Finally, a professional app development environment for iPad.

Connect your GitHub account and import your existing Xcode projects. Bitrig builds, tests, and runs your app, commits your changes, and syncs with GitHub.

Bitrig can now build native Apple Watch apps. Your most personal computer deserves software made just for you.

Bitrig Remote brings the power of Bitrig Mac and Bitrig Agent back to iPhone.

The same simple Bitrig, now powered by a professional-grade iOS development stack.

Meet Rob, a geography teacher and subject matter expert with three apps on the App Store.

How Bitrig’s interpreter represents expressions and extracts APIs from the SDK.

Bitrig uses a Swift interpreter to render apps. How does it work?