Explore 733 articles on iOS performance
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Bumble's iOS team hit a wall: dozens of engineers, hundreds of modules, and Xcode was buckling under the pressure. Sound familiar?
Ted Kremenek from Apple's Swift Core Team just dropped Swift 5.4, and it's packed with performance wins that'll make your builds faster and your runtime leaner. This isn't just new syntax—it's measurable speed ...
Adrian Russell from Just Eat Takeaway turned on Screen Curtain and tried to order food through his own app. What he discovered was shocking: over 100 accessibility failures making the app nearly impossible to u...
Kari Grooms from Expedia Group tackles a problem every iOS team faces: how do you start using SwiftUI when your app is built on UICollectionView? Her solution is clever, but comes with some surprising gotchas.
Callstack brings Hermes to iOS with React Native 0.64, ending Android's monopoly on this performance-focused JavaScript engine. The results challenge assumptions about cross-platform optimization.
Tokopedia's iOS team faced a critical problem: their monolithic app took so long to build that it threatened their weekly release schedule.
Pinterest slashed their iOS app size by 30% (50MB) and immediately saw install rates climb. The culprit? A sneaky localization bug multiplying files across app extensions.
Kari Grooms from Expedia Group's Vrbo team cracked one of SwiftUI's most frustrating puzzles: resizing images without distortion. What should be simple turns into a 10-step journey through modifier hell.
Callstack just brought Hermes to iOS, and the performance gains are real. After years of Android exclusivity, React Native's lightweight JavaScript engine finally runs on Apple platforms.
Bumble's iOS team migrated their entire codebase to Tuist in Q2 2023, choosing it over SPM and Bazel. Here's what happened after the dust settled.
Kari Grooms from Vrbo's iOS team discovered SwiftUI wasn't just a learning curve—it was a complete rethink of how to build mobile UIs. Her team's migration revealed surprising gotchas that most tutorials won't ...
DoorDash's OpenTelemetry adoption hit a wall: 72% CPU utilization versus 56% without tracing. That's a costly tax for observability.
Dmitri Fuerle from OkCupid reveals how their team cut clean build times to under a minute by modularizing their iOS codebase. The secret? Swift Package Manager in a monorepo setup.
Karoy Lorentey from Apple's Swift team just dropped three game-changing data structures that could make your Swift code faster and more reliable. Array and Dictionary aren't enough anymore.
Jaclyn Karnowski from Airbnb reveals how they transformed 45 engineers into mobile developers in just 14 days. The confidence shift? 15% to 90% ready to ship production code.
Bumble's iOS team faced a critical choice: which build system could handle hundreds of modules and future growth without crushing developer productivity?
"My app is slow" - every engineer's nightmare. Slack's mobile team was tired of hitting dead ends when debugging performance issues.
AWS Amplify just shipped CDN caching improvements that delivered a 98% reduction in response times for static assets. Cookie handling was the culprit.
Alexander Kulabukhov from Bumble reveals how his team scaled from a monolithic iOS app to 110+ modules across Badoo and Bumble. The journey wasn't just about splitting code—it was about building a sustainable p...
Cash App open sourced a tool that solves one of iOS debugging's most frustrating problems: crashes that you can't reproduce locally.