FlashList v2: A Ground-Up Rewrite for React Native’s New Architecture
New FlashList removes item size estimates, improves scroll precision & load times; production-ready. (Shopify)
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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)
Mastering CustomPainter: Going Beyond Widgets in Flutter
CustomPainter techniques & perf tradeoffs for bespoke visuals.
Achieving native-like speed: boosting Android WebView performance by 100%+
TikTok’s real-world WebView perf wins: preloading, cache strategy, threading & metrics.
Transforming App Security from Necessary Evil to Performance Advantage
Guardsquare’s CPO shows how profile-based config can improve perf & security together. (droidcon, droidcon nyc 2025)
Tracking app responsiveness at scale using JankStats
How to roll out JankStats across large fleets; sampling, thresholds & dashboards. (droidcon)
UNISOC uses ADPF to improve game performance
Case study + note that ADPF is broadly available (Unity/Unreal/Cocos/native) to tune thermal/perf. Last updated Jul 9. (Android Developers)
The Hidden Performance Cost of Excessive Mobile Analytics
How over-instrumentation hurts startup, memory & battery; pragmatic sampling/SDK tips. (droidcon)
Why is expo-router so slow on Android (production)
I’ve tested this on blank screens and delay between switching them is almost the same. I’ve tried to optimize code with memoization usecallbacks etc. But it didn’t change
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
How We Slashed Android Startup Time by 30% with Baseline Profiles
Nobody likes waiting, especially when opening an app. We noticed a clear trend: the faster our app started, the more users stuck around.
How Dropbox leverages testing to maintain high level of trust at scale
With more than one billion downloads, the Dropbox app for Android has to maintain a high quality bar for a diverse set of use cases and users. With less than 30 Android engineers, manual testing and #yolo isn’t enough
Mobile Bridge: Making WebViews Feel Native
Learn how we tackled the main issues of traditional WebViews—performance, appearance, and integration—and how Mobile Bridge became a game-changer in our mobile development strategy, even allowing us to accelerate the migration to React Native.
How to Reduce Android Studio Memory Usage
Android Studio is a powerful IDE, but it can be memory-hungry. A few tweaks can significantly improve performance and reduce excessive memory usage. Here I will maintain the original tips structure while diving deeper into why each optimization works and how to apply it.
Netflix App Testing At Scale
Testing at Netflix continuously evolves. In order to fully understand where it’s going and why it’s in its current state, it’s also important to understand the historical context of where it has been.
React Native vs Flutter in 2025?
I am now building a mobile app, and checking what is the better platform for building a cross platform (iOS, Android, Web) in 2025 - React Native or Flutter? I am especially interested in the tooling itself regarding ease of building, uploading to the app stores, etc?
Make WebViews edge-to-edge in Android
Ensure your WebViews are compatible with Android 16, as Android 16 removes the ability to opt-out of drawing your app edge-to-edge.
Can we talk about the current state of Xcode?
Even the codeium integration on jetbrains is substantially less clunky than xcode’s codeium integration.