Digital signatures are used everywhere, from verifying a file to securing a custom API. This tutorial shows you how to create a digital signature in Swift.

In this tutorial, you'll learn how easy it is to add push notifications to your NativeScript app with the Firebase Cloud Messaging Service.

Activities are a fundamental part of Android app development, and you need to understand their lifecycles. So learn all about the Activity lifecycle.

Learn about top-level functions, lambda expressions, anonymous functions, local functions, infix functions, and member functions in Kotlin.

Learn about an alternative to the MVC pattern: Model-View-ViewModel. I'll show you how MVVM can resolve some of the shortcomings of Model-View-Controller.

You've developed your first iOS app, but how do you make it public? This article gives you a detailed map to get your app submitted to Apple's App Store.

Learn how to work with Realm Functions, which provide a simple and elegant way to add serverless logic that can respond to changes in Realms.

In this tutorial, you'll learn how to add Facebook login to your NativeScript app. You'll also learn how to use Firebase to store session data.

In this tutorial, we'll start by looking at how to organize code using packages in Kotlin, and then go on to an introduction to functions in Kotlin.

If you are a mobile app developer or interested in getting into designing apps and you haven’t heard of Envato Elements, this post is for you.

Model-View-Controller (MVC) is a widespread software development pattern. Learn what MVC is and why it may not be the best solution for Cocoa developers.

Kotlin is free and open source, and makes coding for Android more fun. In this tutorial we'll look at advanced data types such as ranges and collections.