What you can use to write an Android application: a complete guide to choosing technology

Mobile application development for Android remains one of the most popular IT specialties, but the choice of tools can confuse even an experienced programmer. In 2026, the ecosystem offers dozens of options - from classic Java i Kotlin to cross-platform frameworks like Flutter or React Native. Each approach has its own strengths, limitations and target audience: some are ideal for startups with a limited budget, others are suitable for high-load enterprise solutions.

In this article we will analyze 7 main ways to create Android applications, compare them according to key criteria (performance, complexity of development, community support) and help you make a choice. You'll learn when to use native development and when you can save time with cross-platform solutions. We will pay special attention to new trends of 2026such as Compose Multiplatform and the integration of AI assistants into the development process.

1. Native development: Java and Kotlin

The traditional approach using Android SDK and languages Java/Kotlin is still considered the gold standard for applications where performance and access to all device functions are critical. Kotlin, announced by Google as the preferred language back in 2019, is today used in 80% of new projects due to its concise syntax and modern features like coroutines.

Java it remains relevant for supporting legacy code and enterprise solutions where stability is important. Both languages allow you to work with Android Jetpack a set of libraries to speed up development (for example, Room for databases or Navigation Component for managing screens).

• ✅ Full access to the Android API and hardware capabilities (camera, sensors, NFC)
• ✅ Maximum performance (native code is compiled into .dex files)
• ✅ Official Google support and extensive documentation
• ❌ Higher entry threshold compared to cross-platform solutions
• ❌ Separate codebase for Android and iOS (if multiplatform is needed)

⚠️ Attention: Starting in 2023, Google requires new applications to Google Play support Android 12 (API 31) or higher. This means that you will have to adapt your code to the latest changes in the permissions and security system.

2. Flutter: cross-platform with native performance, a framework from Google, has revolutionized cross-platform development thanks to an architecture where the UI is rendered directly in the graphics engine. This allows you to achieve

Flutter, a framework from Google, has revolutionized cross-platform development with an architecture where the UI is rendered directly in Skia - graphics engine. This allows you to achieve 60-120 FPS even with complex animations, which is comparable to native applications. The language Dartin which Flutter applications are written combines simplicity JavaScript with typing Kotlin.

One ​​of the key advantages is "hot reload" the ability to instantly change the code without restarting the application. This speeds up development by 30-40%. Flutter is suitable for MVPs, startups and applications where a single code base is important for Android, iOS, Web and even Desktop.

Criterion	Flutter	React Native	Native (Kotlin)
Performance	95-100% of native	80-90%	100%
Development time	Fast (hot reload)	Average	Slow
API access	Via plugins	Across Bridges	Full
Community	Large (Google)	Very large (Meta)	Largest

⚠️ Attention: Flutter applications can weigh 10-15% more than native ones due to the built-in engine Skia. For applications smaller than 10 MB in size, this can be critical.

Which companies use Flutter?

Among the well-known applications on Flutter are Google Ads, Alibaba, BMW, eBay, as well as mobile banks Revolut and Nubank.

3. React Native: JavaScript for mobile development, created by

React Nativecreated by the company Meta (formerly Facebook), allows you to develop mobile applications in JavaScript or TypeScript using the reactive paradigm. The main difference is from Flutter — rendering of native components (rather than a native UI), which provides high performance and a natural appearance.

The framework is ideal for web developers who want to quickly move into the mobile sphere. Thanks to the extensive ecosystem of libraries (for example, react-navigation for navigation or redux state management) can significantly speed up development. However, for complex animations or non-standard UI elements, you may need to write native modules on Java/Kotlin.

• ✅ Quick start for front-end developers (uses familiar JSX)
• ✅ Large community and many ready-made solutions on npm
• ✅ Support for "live reload" (but not as fast as in Flutter)
• ❌ Performance problems with complex calculations in a JS stream
• ❌ Dependence on bridges between JS and native code

4. Compose Multiplatform: the future of cross-platform development

Compose Multiplatform is an evolution Jetpack Compose (UI framework for Android) from Google, which allows you to use the same code for Android, iOS, Desktop i Web. Unlike Flutter, here we use native rendering, which gives an increase in performance and a smaller app size.

The language Kotlin is a single tool for all platforms, and the syntax of @Composablefunctions makes the code declarative and easy to maintain. For example, the same login screen can be described once and compiled for all platforms. While the ecosystem is young (release 1.0 took place in 2023. year), but is already used in projects Netflix i Tinkoff.

@Composable
fun Greeting(name: String) {
Text("Hello, $name!") // This code will work on both Android and iOS
}

⚠️ Attention: At the time of 2026 Compose for iOS does not yet support everything native components SwiftUIComplex screens may require writing wrappers.

5. Alternative frameworks: Ionic, Capacitor, Xamarin

In addition to market leaders, there are niche solutions for specific tasks:

• 📱 Ionic + Capacitor: Hybrid approach, where a web application (HTML/CSS/JS) is wrapped in a native shell. Suitable for simple applications with minimal logic (for example, news feeds or feedback forms). Performance is lower than that of React Native, but you can use any web technologies.
• 🔧 Xamarin: Framework from Microsoft that uses C# i .NET. Popular in the enterprise segment due to its close integration with Visual Studio i Azure. However, the community is smaller than Flutter or React Native.
• 🚀 NativeScript: Allows you to write native applications in JavaScript/TypeScript with direct access to the Android/iOS API. Suitable for applications where performance is important, but there are no resources to learn Kotlin/Swift.

These tools should only be considered if:

1. Your team already knows specific technologies (for example, C# for Xamarin).
2. You need to quickly prototype an application with minimal effort.
3. The target audience does not require high performance (for example, internal corporate tools).

6. No-code and low-code platforms: AppSheet, Adalo, Thunkable

For business tasks where speed is more important than customization, constructors are suitable. They allow you to assemble applications from. ready-made blocks without writing code. For example: no-code/low-code constructors. They allow you to assemble applications from ready-made blocks without writing code. For example:

• 📊 AppSheet (from Google): Integrates with Google Sheets, Firebase i SQL. Suitable for internal CRM or inventory systems.
• 🎨 Adalo: Drag-and-drop interface with the ability to add custom code. MVP.
• 🤖 Thunkable: Based on MIT App Inventor, but with expanded capabilities for commercial projects.

The main plus is speed: the simplest application can be assembled in a few hours. Cons:

• Limited functionality (for example, there is no support for BLE or ARCore in most designers).
• Platform dependence (if the service closes, the application may stop work).
• Paid rates for publishing in stores (from $20/month).

Your application is a form with fields and buttons|You need to test the idea before development|Budget less than $1000|Target audience - internal users of the company -->

7. Game engines: Unity and Godot for Android games

If you are developing gamethen classic tools like Android Studio will not work. The leaders here are:

• 🎮 Unity (C#): The most popular engine for mobile games (used in 50% of projects on Google Play). Supports ARCore, Google Play Games and has a built-in asset store Asset Store.
• 🐍 Godot (GDScript/C#): Free and open source engine with easy porting to other platforms. Ideal for 2D games and indie projects.
• 🔥 Unreal Engine (Blueprints/C++): Powerful engine for 3D games with photorealistic graphics, but requires high qualifications and powerful hardware for development.

For casual games (for example, hyper-casual genre) are often used Unity with plugins for monetization (Unity Ads, AppLovin). For more complex projects (MMORPG, shooters), you may need Unreal Engine or a custom engine on C++.

⚠️ Attention: Since 2026, Unity has changed the monetization model by introducing installation fees (Unity Runtime Fee). For indie developers, this can increase costs by 10-30%.

FAQ: Frequently asked questions about Android development

Which language is easier for a beginner to learn: Kotlin or Java?

Kotlin easier for beginners thanks to:

• More concise syntax (for example, getters/setters are generated automatically).
• Null-safety (eliminates NullPointerException).
• Better integration with modern tools (Coroutines, Jetpack Compose).

Java worth learning only if you plan to work with legacy projects or enterprise development.

Is it possible to make an augmented reality (AR) application using Flutter?

Yes, but with reservations:

• For basic AR (for example, overlaying 3D models), use plugins arcore_flutter_plugin or ar_flutter.
• For complex scenes (for example, games with physics), it is better to use Unity or native development with ARCore.

AR performance on Flutter will be 15-20% lower than in a native application.

How much does it cost? publish an application on Google Play?

One-time registration fee for the developer - $25 (for 2026). Additional costs:

• 0% commissions for the first $1 million of income per year (app Google Play Media Experience).
• 15% commissions for digital goods/subscriptions after exceeding $1 million
• $0.01-$0.03 per installation, if you use Unity Runtime Fee.

Which framework to choose for a startup with a limited budget?

Optimal options in terms of price/quality ratio:

1. Flutter - if you need cross-platform and high performance.
2. React Native — if the team has web developers.
3. No-code (Adalo/Thunkable) — for a prototype that needs to be shown to investors.

Avoid Xamarin i Ionic —they require more time for support.

Do I need to know Kotlin if I want to work with Compose Multiplatform?

Yes, Kotlin is a prerequisite. Compose Multiplatform uses:

• Syntax @Composable-functions (analog @Component v React).
• Coroutines for asynchronous operations.
• Type system Kotlin for cross-platform logic.

If you know Java, you can go to Kotlin in 1-2 weeks.