Mobile

It’s not every day that a client asks a developer to create a mobile app that cannot be closed, but this can be a crucial feature for Point of Sale (POS) devices. In this article, Toptal Software Developer Tudor Filip Stupariu demonstrates how he built an Android POS app that can’t be closed.

Feedback on an enterprise web app prompted an experiment. Could a WhatsApp chatbot replace it? Would people like it better? Would it be more useful?

Missing the luxury of a good, old-fashioned remote control when the laptop is beyond easy reach? Transform your old smartphone into a remote and learn some basic Node.js/Express/Pug along the way.

Mobile and web applications typically need a back-end server, which requires maintenance, updates, backups, and more. So why not dispense with them? In this article, Toptal Java Developer Phillip Edwards outlines how you can use Google Firebase to develop serverless applications without incurring a lot of costs.

Writing multiple native applications for different mobile platforms can be a daunting task, but taking a non-native approach comes with pitfalls of its own. In this article, Toptal Mobile Developer Joel Frank outlines the concept of Write Once, Deploy Everywhere (WODE) and explains how to choose the right development path for your project.

Internet privacy's cutting-edge technology includes encrypted server name indication (ESNI) and encrypted DNS in the form of DNS over HTTPS (DoH). Find out what they are, why they exist, and how they work.

A property wrapper is a generic structure that encapsulates read and write access to the property and adds additional behavior to it. We use it if we need to constrain the available property values, add extra logic to the read/write access (like using databases or user defaults), or add some additional methods. In this article, Toptal Freelance iOS Developer Alexander Gaidukov demonstrates Swift 5.1’s new @propertyWrapper annotation—a more elegant solution.

The quietly growing number of serious Haxe projects have something new to contend with: the first major compiler release in over three years. What does Haxe 4 bring to the table?