Build, launch, and keep improving
Practical guides for building, customizing, launching, and growing software products.
Use Kotlin null safety as an API-design tool through non-null defaults, safe parsing, explicit absence, platform-type boundaries, and sealed outcomes. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.
Use Kotlin Flow for cold asynchronous streams, state sharing, cancellation, backpressure decisions, and lifecycle-aware UI collection. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.
Use kotlinx.serialization with explicit models, stable field names, tolerant decoding where required, custom serializers at boundaries, and tested schema evolution. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.
Implement Android MVVM with unidirectional state, lifecycle-aware ViewModels, immutable UI models, coroutines, and repositories that expose clear contracts. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.
Secure Android apps with least-privilege permissions, encrypted transport, safe credential storage, validated deep links, hardened WebViews, and dependency hygiene. This revised guide emphasizes supported APIs, production tradeoffs, and an upgrade-friendly path without tying the advice to a calendar year.
The React Native team has been hard at work on a groundbreaking overhaul, culminating in what’s now known as the New Architecture. By 2024, this innovative update has proven its prowess, powering production apps at Meta. Explore how the New Architecture elevates the React Native development experience, delivering unmatched performance and efficiency.
In today’s fast-paced app development world, choosing the right framework for building cross-platform applications is crucial. Two of the most popular frameworks in this space are Flutter and React Native. This article will dive into a detailed comparison of these two frameworks to help you make an informed decision for your next project.
Looking to start a new mobile app? Launching a mobile app startup has never been easier and hotter. If you are a developer or an entrepreneur looking to launch the next big thing, we've curated a list of the best mobile app ideas to create in 2025. Use it for inspiration and insights into the current mobile market trends. Smartphones have exploded in popularity within the last decade, and they quickly replaced the old desktops for the average consumer. Even laptops are now outdated. Smartphones are our inseparable companions, bringing more convenience and fun into our lives. In addition to concrete mobile app ideas, we also tried to provide some insights on how to generate more app ideas, from our own app generation framework, that gravitates around starting with a niche.
In this tutorial, you’ll learn how to record and play audio in React Native apps. We are going to build a simple screen that supports features such as recording audio, playing audio files, pausing and resuming, as well as resetting audio streams.
In this article, we are going to describe how to add a video player in your React Native app in order to support playing Youtube videos. Video is the present and the future of the Internet, as you can already see through apps such as TikTok, Youtube, Instagram or Facebook.
At Instamobile, all of our React Native Templates have support for saving the user login credentials. This means that when users open the app, they are automatically logged in if they previously entered their valid login info. To achieve this behavior, we are leveraging AsyncStorage. In this tutorial, we are offering a React Native AsyncStorage example, inspired by our work on Instamobile’s React Native starter kits, including functional source code and step by step explanations.
Flutter is an open-source Software Development Kit (SDK) for creating user interfaces. Maintained by Google, Flutter continues to evolve and improve. Flutter is a top choice for cross-platform development. Large applications will almost certainly encounter difficulties or defects that need to be debugged while using Flutter as a development kit.