Kotlin is the recommended language for Android app development due to its modern features, reduced verbosity, and better interoperability with Java. Java, while still supported, is being gradually phased out in favor of Kotlin.

MVVM (Model-View-ViewModel) is an architecture that separates the UI (View) from the business logic (Model) using a ViewModel. It enhances scalability, maintainability, and testability, making it ideal for complex applications.

APIs allow Android apps to interact with external servers or third-party services. They enable functionalities like fetching data, performing user authentication, or integrating payment systems into the app.

Security measures include encrypted data storage, secure authentication (OAuth, JWT), and using secure APIs. We also follow secure coding practices and conduct thorough penetration testing to safeguard user data.

RESTful APIs are a standard for transferring data between client and server using HTTP. GraphQL, on the other hand, allows for more efficient data retrieval by letting the client specify exactly what data it needs. GraphQL is ideal for complex applications requiring more flexible queries.

We optimize app performance by using modular code, efficient algorithms, minimizing background processes, and leveraging tools like Firebase Performance Monitoring to track and resolve any performance bottlenecks.

Automated testing ensures the app is thoroughly tested for bugs and issues, especially in complex projects. It helps catch errors early, improves code quality, and ensures that future updates don’t break existing functionality.

After launch, we provide continuous support and updates based on user feedback, app performance, and Android OS changes. We also ensure your app remains compliant with the latest Play Store guidelines and best practices.