Project Butter: A Journey for App Performance Improvement
A comprehensive guide to improving App Performance for Mobile Apps
Explore 296 articles on iOS performance
Showing 20 of 296 articles (Page 1 of 15)
Unlock Native Power in Flutter Part2Part 2Part2
Platform Views + performance considerations (hybrid composition, frame lag) + testing guidance.
Unlock Native Power in Flutter Part1Part 1Part1
Flutter ↔ native integration via channels; includes performance-related motivation (heavy computations, etc.).
Demystifying user journeys: Revolutionizing troubleshooting with auto tracking
How Grab's AutoTrack SDK is used to revolutionize session tracking and troubleshooting by providing complete user journey data.
Grab’s Mac Cloud Exit supercharges macOS CI/CD
Grab moved macOS CI/CD close to its Git servers, improving iOS build & pipeline times ~20–45% and saving ~$2.4M over 3 years, with stability maintained. (Grab Tech)
Scaling Mobile UI Testing with AI
In 2025, AI became our star driver. After years of building the infrastructure — Mercury for test and release management, Helios for VM orchestration
Accelerating Mobile App Development at Zalando with Rendering Engine and React Native
Brownfield React Native integration via “React Native as a package”
How Uber Standardized Mobile Analytics for Cross-Platform Insights
Describes how Uber improved mobile monitoring by unifying analytics across iOS and Android. The team standardized event instrumentation, collected consistent metadata, and provided sampled event coverage to ensure better insight into user interactions and app health. This streamlined performance monitoring and data quality across platforms.
How Uber Standardized Mobile Analytics for Cross-Platform Insights
Standardizing mobile analytics to gain consistent, cross-platform insights at Uber scale.
The evolution of native engineering at Tripadvisor: Part 2
In the first post in this series Benoit Sarrazin discussed the adoption of The Composable Architecture in our iOS app. He covered the reasons for this change, the benefits it brought, and the challenges we faced.
Our Buildkite Brings All the Devs to the Yard: (Re)Building Reddit Mobile CI in 2025
Reddit Mobile CI overhaul: up to 50% faster build times, improved stability and developer sentiment; details on infra choices and trade-offs. (Reddit)
Accelerating on-device ML on Meta’s apps with ExecuTorch
WhatsApp/Messenger moved key models on-device; reduced model load & inference time and improved ANR metrics. (Engineering at Meta)
Accelerating on-device ML on Meta’s family of apps with ExecuTorch
ExecuTorch rollout across Instagram/WhatsApp/Messenger/Facebook improved latency and reliability; WhatsApp reports reduced model load/inference time and lower ANR metrics; several features moved on-device for performance/privacy. (Engineering at Meta)
How we used Macros to Promote MVVM architecture adoption
Over the past few years, our team of iOS engineers has grown significantly (and continues to grow!), as has the size of the codebase.
Understanding and Improving SwiftUI Performance
New techniques we’re using at Airbnb to improve and maintain performance of SwiftUI features at scale
The evolution of native engineering at Tripadvisor: Part 1
In the ever-evolving landscape of iOS development, architectural decisions can make or break a team’s productivity and code quality. For our large team of iOS developers working on a Server Driven UI (SDUI) platform
Can we talk about the current state of Xcode?
Even the codeium integration on jetbrains is substantially less clunky than xcode’s codeium integration.
How server-driven UI is revolutionizing mobile app experiences
At Careem, agility and adaptability are key to delivering highly personalized and seamless user experiences as we need to move fast to react to customer behaviour during different times of the year, such as Ramadan
How 40 Lines of Code Sped Up iOS End to End Tests by over 50%
At Wealthfront, testing is one of our core engineering principles—in the form of unit and end-to-end testing on all platforms. The iOS team in particular manages its own CI infrastructure to run tests against an integration server
Skyscanner’s journey to effective observability
The year was 2020 and Skyscanner, like the entire travel industry, faced unprecedented challenges due to the global COVID-19 pandemic. Yet, this difficult year also provided an opportunity for introspection