Kotlin Multiplatform statistics library: distributions, hypothesis tests, correlation, descriptive stats, and sampling

☀️ A weather app that answers the only question that matters

Get Android app updates straight from the source.

The most beautiful SMS messenger for Android - Revived

🧙 Server Driven Compose showcases server-driven UI approaches in Jetpack Compose with Firebase.

Kotlin multiplatform units for representing SI and IEC bytes and bits, inspired by jakewharton/byteunits and kotlin.time.Duration

Offline Android video player for your downloaded Reels, Shorts, and TikToks

Jetpack Compose library for Instagram Reels/TikTok style vertical video feeds with ExoPlayer pooling, pinch-to-zoom, and infinite scroll

Air Native Extension (iOS and Android) for the Facebook mobile SDK

Square's specific extensions for Metro to make dependency injection easier.

Tracy: AI Tracing Library for Kotlin and Java

A lightweight framework for tracking and asserting against Jetpack Compose recompositions.

News Kotlin Multiplatform project designed to target Android, iOS, Windows, macOS, Linux platforms.

Vulnerable app with examples showing how to not use secrets

AvdBuddy is a native macOS app for managing Android Virtual Devices without going through Android Studio.

AI-Mocks is a Kotlin-based mock server toolkit that brings service virtualization to both HTTP/SSE and LLM APIs — think WireMock meets local OpenAI/Anthropic/Gemini/A2A testing, but with real streaming and Server-Sent Events support.

Mokksy is a mock HTTP server built with Kotlin and Ktor

Full‑Featured Android Compose App Framework • Kotlin, MVVM, Navigation, Networking, Storage & Modular Architecture for Real‑World Projects

Android incremental build accelerator — skip unchanged module tasks (UP-TO-DATE → SKIPPED, zero overhead). 100+ modules, 80%+ faster.Android 增量编译加速插件 — 跳过未变更 module 的 task（UP-TO-DATE → SKIPPED，0 耗时）。100+ module 项目实测提升 80%+。

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Evaluation Framework for LLM applications in Java and Kotlin

Fast mobile UI test automation for Android, iOS, React Native, Flutter & Expo. Open-source Maestro alternative — 100% free, no features behind a paywall. Supports real iOS devices, simulators, emulators, and cloud providers.

A Capacitor document scanner plugin for Android and iOS

Production-grade Ghidra MCP Server — 132 endpoints, cross-binary documentation transfer, batch analysis, headless mode, and Docker deployment for AI-powered reverse engineering

CLI to control iOS and Android devices for AI agents