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The Best Reads on Mobile App Performance

How top companies optimize their apps for the best customer experience.

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Ekaterina Volodko and Alejandra Pedroza Marchena from JetBrains announce a game-changer: Compose Multiplatform for web just hit Beta, powered by Wasm. Your Android Compose skills now work in the browser with mi...

Android 16 QPR2 Beta 2 Release

Company: Google · Sep 17, 2025
Platform: Android

Android 16 QPR2 Beta 2 is here, and it's time for developers to start testing. Google continues its quarterly platform release cadence with another beta drop.

Ever spent hours debugging why your React Native Android app won't connect to Metro during development? You're not alone.

KBTG's Flutter team cut app load time by 30% without touching a single backend API. The secret? Rethinking how they used async/await.

Swift 6.2 Released

Company: Swift.org Blog · Sep 15, 2025
Platform: iOS / Android

Holly Borla from Apple's Swift Core Team just dropped Swift 6.2, and it's tackling the biggest pain point in modern development: making concurrent programming actually approachable. This isn't just another incr...

Chamod Lakmal from PickMe Engineering just open-sourced a LocationManager that turns Android's notoriously messy location APIs into clean, testable code. No more callback hell or mystery crashes.

Callstack just dropped a guide on bringing Apple's Liquid Glass effect to React Native apps. If you've been eyeing those gorgeous iOS blur effects, this is your playbook.

Kotlin 2.2.20 Released

Company: Kotlin Blog · Sep 10, 2025

Kotlin 2.2.20 just dropped, and it's bringing web development into sharp focus. The biggest news? Kotlin/Wasm has officially hit Beta status.

Johan Bay from Google just dropped a game-changer for Android app size. Apps sharing resources across form factors are seeing 50%+ size reductions with one configuration change.

Oleksii Chyrkov from Lyft just closed the book on a 7-year migration journey. The final push to eliminate Java from their entire Android codebase revealed some brutal truths about automated tooling.

Stone, a Latin American fintech serving 4M+ users, went all-in on Kotlin Multiplatform two years ago. The results? 55% code sharing across their mobile apps.

Frank Calise from Infinite Red tested Expo SDK 54 and found iOS builds dropping from 5:28 to 3:33. That's a 35% time savings without changing a single line of code.

The article link appears to be broken or unavailable. This SwiftUI performance piece from Airbnb Engineering isn't loading, returning a 404 error instead.

Shopify just migrated two massive apps to React Native's New Architecture without pausing weekly releases or breaking production for millions of merchants.

Very Good Ventures built something that doesn't officially exist yet: Allure test reporting for Flutter. Their custom adapter transforms dense console logs into visual, stakeholder-friendly reports that actuall...

Google is cracking down on battery-draining apps. Starting March 2026, excessive wake lock usage could get your app demoted in the Play Store or flagged with battery warnings.

Emil Flach from JetBrains just dropped the KMP roadmap through mid-2026, and it's packed with game-changers. If you're building cross-platform apps, this affects your next 12 months.

Elevating Android Security

Company: Google · Aug 25, 2025
Platform: Android

Suzanne Frey from Google just announced a major shift in Android's security model. Starting 2026, every app installed on certified Android devices will need a verified developer behind it.

Ravi Roshan from Walmart reveals how his team turned web performance into a revenue driver. The results? A 40% faster load time and a complete SEO transformation that moved every product page from 'Poor' to 'Go...

Caren Chang, Joanna Huang, and Chengji Yan from Google reveal how they're making Gemini Nano v3 940 tokens/second fast while keeping quality consistent across devices. The secret? LoRA adapters and rigorous eva...

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