Weekly Digest
Jan 26 - Feb 1, 2026
9 articles that week
What's New in Swift: January 2026 Edition
Nick Sloan from Studioworks processed millions in invoices with Swift on the server and saw fewer production bugs than in 20 years of web development. Here's what's happening in the Swift ecosystem this month.
Introducing AI SDK Profiler for React Native Performance Analysis
Callstack just dropped a game-changer for React Native teams struggling with AI SDK performance. If you've ever wondered why your on-device LLM integration feels sluggish, this new profiler is about to give you answers.
Cursor at Grab: Adoption and impact
Grab achieved 98% monthly active adoption of Cursor across their engineering org in just months. That's nearly 30 points higher than industry benchmarks for high-performing teams.
The solo dev playbook: ship faster with Expo, EAS Build, and OTA Updates
Liam Du built and shipped Wellspoken—an AI-powered articulation coach—to both iOS and Android in one week. Zero Xcode. Zero Android Studio. Just Expo.
How Automated Prompt Optimization Unlocks Quality Gains for ML Kit's GenAI Prompt API
Google just solved one of mobile AI's biggest challenges: how do you customize foundation models for your app without breaking device constraints? Their answer might surprise you—it's not fine-tuning.
Implementing CSS Clipping Techniques in React Native
CSS clipping techniques are coming to React Native, and they're about to change how we think about UI masking and visual effects. Callstack just dropped a deep dive into making web-style clipping work natively.
Optimizing GRDB in Todoist for iOS
Todoist's iOS app became nearly unusable for some users after migrating from Realm to GRDB. The culprit? A SQL query generating 128,136 intermediate rows from just 399 actual records.
Beyond the smartphone: How JioHotstar optimized its UX for foldables and tablets
Prateek Batra from Google reveals how JioHotstar transformed their streaming app for 400 million users. The secret? Treating tablets and foldables as first-class citizens, not just stretched phones.
Kotlin Intrinsics on Android
Rahul Ravikumar reveals how Android's tooling has been quietly carrying the weight of Kotlin's type safety. Every null check, every parameter validation adds overhead that pure Kotlin apps don't actually need.