Topic
102 articles
Articles about Engineering from the Courier developer blog.

Cross-Platform Development in 2025: Lynx vs. React Native vs. Flutter
Lynx, React Native, and Flutter each offer a unique approach to cross-platform development in 2025. Lynx brings a web-native workflow with full CSS support, React Native thrives on its vast ecosystem and React compatibility, while Flutter delivers consistent UIs with high-performance rendering. This breakdown explores their strengths, technical differences, and which framework suits your next project.

Firebase Dynamic Links Are Shutting Down – What’s Next for Notifications & Deep Linking?
Firebase Dynamic Links will be discontinued by August 25, 2025, impacting push notifications, SMS, and email deep linking. Discover the best alternatives, from App Links and Universal Links to third-party services and custom solutions.

The Evolution of Mobile Development: From native apps to Flutter, React Native, and AI
Mobile development has come a long way—from the challenges of native apps to the rise of cross-platform tools like React Native and Flutter. Now, AI is driving a new wave of innovation, making app creation faster, smarter, and more accessible than ever. Explore the journey and see what’s next for developers.

Get Your iOS App Ready for the 2025 Apple Push Notification Service Server Certificate Update
Apple is updating its Push Notification Service (APNs) certificates in 2025. Learn how to prepare your app for these changes, ensure uninterrupted notifications, and get expert tips for a smooth transition.
Simplifying notifications with the Courier iOS SDK
Push notifications are a valuable tool for keeping users informed and increasing their engagement with your app. You can use push notifications to alert users about promotions, new content, or any other important updates. While push notifications are a powerful tool, setting up push notifications in iOS can be a daunting task that requires a significant amount of effort and time. Fortunately, the Courier iOS Mobile Notifications Software Development Kit (SDK) simplifies this process.

Develop a Motivational QOTD with Courier and GPT2
Courier and OpenGPT2 in action: build a service that sends friends and family an AI generated motivational quote of the day.

How to Send Invoice and Add Payment Reminder in Next.js with Courier API
Learn how to build an invoice management system with Next.js and Courier.

Building a Great UX Outside of your App
This article argues that there’s a more important user experience than the one inside your app.

Build a WebAssembly Language for Fun and Profit: Code Generation
The final phase of our compiler is code generation. This phase takes the AST and converts it to a set of executable instructions. In our case, WebAssembly.
© 2026 Courier. All rights reserved.