mobile / android

Android Development, Free

Build for the world's most-used mobile OS. Learn modern Android with Kotlin and Jetpack Compose, straight from Google's free official curriculum. All resources current.

updated jul 2026·2 tracks·all free

Android runs on billions of devices, and Google gives away everything you need to build for it. Modern Android is written in Kotlin (a concise, safe language) using Jetpack Compose (a modern declarative UI toolkit). Learn the language first if it's new to you, then follow Google's official course to build real apps.

01 · THE LANGUAGE

Kotlin

The modern language of Android.

Kotlin Documentation (official) ↗JetBrains' free official docs and interactive tour for Kotlin — concise, modern, and the language all new Android is written in.kotlinlang.org

02 · BUILD APPS

Official Android training

Google's free, hands-on curriculum.

Android Basics with Compose ↗Google's free official course — build real Android apps in Kotlin with Jetpack Compose, from your first screen to a published app.developer.android.com
Android Developers (docs) ↗The complete official documentation, guides, and API reference for the Android platform. The source of truth as you build.developer.android.com

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