Vue Native: Build Native Mobile Apps with Vue.js — React has React Native, and now if you're a Vue.js, you could give this a try. Unlike React Native this isn't an official project from the same team and it's essentially a Vue.js wrapper around React Native itself. Introductory article here.
How to Build a Mobile App from Scratch with Flutter — Watch two Google developers build an app from scratch in Flutter, Google's mobile UI framework for Android and iOS, including all the dead ends, blunders, and runtime errors.
Mobile Enterprise Authentication Simplified — With 5 minutes and a few bits of config, you can build an app connected to Open ID, Active Directory, OAuth2 or SAML. Includes fully featured mobile backend. Try it.
AMPstinction — The author asks if AMP is like Flash in that "the technology and process itself might be bad (which is arguable) but the efforts might lead to something longer lasting".
A Deeply Detailed But Never Definitive Guide to Mobile Development Architecture — An in-depth comparison between Native, Web, PWA, hybrid and cross-compiled mobile app technologies.
Announcing React Native Copilot — A look at how to use the 'React Native Copilot' package — lets you create step-by-step walk-throughs for React Native apps.
Talkin' Treble: How Android Engineers Are Winning The War on Fragmentation — A Q&A with two Android engineers on how the Android platform is hoping to resolve the perennial issue of fragmentation.
What's New in iOS 12? A Developer's Perspective — Learn what developer features have changed and how to use them.
Flutter: Learning Resources for Beginners — A good place to start if you're new to Flutter, Google's mobile app SDK.
Using Material Design with Flutter — See how to turn a two-screen design into real code that runs on both iOS and Android.
Want to Build Better Apps in 10 Days? — With on-demand courses on Swift, C#, Android, Java and more, take your dev skills next level with 10 days free.
The Future of The Mac Comes From iOS Apps — Trying to clear up confusion around Apple's announcement that it will soon allow porting of iOS apps to MacOS.
Designing Web Content for watchOS — Some early pointers on building pages for the Apple Watch.
Offline-First with Node.js and Hoodie: A Practical Introduction to Progressive Web Apps — Building a shopping tracker PWA to introduce working with Service Workers, the Cache API, and Hoodie.