Android App GitHub Repositories (2026) · Open Source Tools

Privacy focused period tracking!

Tinder for your positive thoughts.

HomeApp is a small and easy to use smart home app with a simple framework.

🔢 Tally counter for Android

Android Harness AI Coding Agent Native app for mobile, No Root No PC

Autonomous on-device Android AI agent powered by pure vision (13MB APK). Runs 100% natively on a background virtual display—no root, no PC, no Accessibility Service, and no Termux/Linux sandbox needed. Just pair once via Wireless Debugging, add your API key, and go.

Ensure your password safety by scanning in data breaches.

A secure, lightweight, & offline password manager for Android

Riichi Mahjong Calculator App (for Android, iOS, Desktop, Web, based on Compose Multiplatform)

a list of awesome open source android apps 📱

STHLM Traveling helps you plan your journeys using data from Stockholm Public Transport (SL, Stockholms Lokaltrafik) on your Android phone

\\ Native kotlin Instagram downloader to download posts, no ads, no payment.

A lightweight bubble notice tool for android phones, no "Root/Shizuku" required.

the streaming client that speaks host.

Inkita is a lightweight Android reader for Kavita: fast browsing, offline downloads, and reliable progress sync. It caches metadata, pages, and thumbnails so you can read on the go and resume exactly where you left off.

Fast, secure email client with chat and kanban views.

A Kotlin Multiplatform client for Mastodon and Friendica

RikkaHub Agent · Pure — an Android AI agent that survives long runs. Independent hardening pass on the rikkahub on-device agent: usage ledger & budgets, on-demand tools, expert sub-agents, cold memory, chained workflows. Kotlin/Compose, Shizuku/Termux/MCP. QQ group 1030362371.

DevPulse is a modern, native Android system telemetry, hardware diagnostic suite, and real-time performance monitoring application built with Jetpack Compose and Material 3.

An autonomous, always-on agent on your Android phone. It has its own browser, keeps a wiki memory of you, and hands the heavy jobs to your own machines. Free and open source, and you bring the model.