Explore 662 articles on iOS performance
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LazyPay was serving unoptimized images directly from S3, killing app performance and burning bandwidth. Their migration to Cloudinary cut image sizes by 70%.
Robinhood was taking weeks and multiple engineers just to make simple UI changes. Their solution? Server-Driven UI that lets them ship to all platforms without app releases.
Uber rewrote their Android rider app in 2016 and made an architectural choice that most Android teams avoid: deeply nested dependency injection scopes.
Swiggy's iOS team slashed build wait times by 80% and cut 8-10 minutes off every build. Here's the detailed playbook they used with Bitrise.
Etsy's iOS listing screen handles 16% of all app traffic. But after a decade, its monolithic architecture was slowing everything down.
Slack just wrapped a massive mobile refactor. The results? 68% of iOS and 92% of Android codebases modernized, with CI times slashed by over 60%.
Slack's mobile codebase was slowing teams down. Their solution? Break the monolith into hundreds of independent modules.
DoorDash makes millions of ML predictions per second, but their Redis-based feature store was becoming a massive cost and scalability bottleneck. Could client-side caching be the answer?
Slack's engineering team ran into a classic performance testing problem: spinning up load tests was so time-consuming that teams avoided doing it. Their solution? Never stop testing.
Medium's iOS team ditched their monolith for Swift packages and SwiftUI. A year later, they're shipping features faster than ever.
Swiggy's mobile team was drowning in Jenkins bottlenecks. Build times were slow, machines crashed frequently, and manual interventions killed velocity.
Tokopedia's iOS team was drowning in 30-minute unit test cycles with 65 developers fighting over 9 CI/CD machines. They cut that time by 8X.
Grab's engineering team just unlocked 30% memory savings and 38% storage reduction with a simple compiler flag. Here's how Profile-Guided Optimization (PGO) delivered massive gains with minimal code changes.
Grab's iOS team turned flaky CI tests into a 50% CPU reduction story. Their secret? Observability tools and some creative workarounds for Xcode 13.1's notorious Spotlight bug.
Pierre Abi-aad from leboncoin took Xcode Cloud for a test drive with a 28-developer iOS team. His verdict? Not ready for complex architectures, but Apple's onto something.
Swiggy tackled mobile web accessibility and discovered that following W3C guidelines was just the starting point. The real challenge? Making a food delivery app work seamlessly for screen reader users.
Tony Parker from Apple just dropped a game-changer for async Swift development. If you've been wrestling with time-based operations or multi-input streams, this new package solves problems you didn't know had e...
Tokopedia's mobile team was sending massive GraphQL queries with every API call. The network overhead was killing performance on slower connections.
Booking.com discovered that standard performance monitoring tools from Apple, Google, and Firebase couldn't meet their needs. So they built their own—and just open-sourced it.
Robinhood doubled their engineering team in a year while scaling to handle unpredictable market swings. Here's the framework that made it possible without breaking their systems or culture.