Termux - a terminal emulator application for Android OS extendible by variety of packages.

A browser automation framework and ecosystem.

Lightning fast, open-source, < 250kb Android launcher

a Business Process Management (BPM) Suite

JODConverter automates document conversions using LibreOffice or Apache OpenOffice.

Artificial Intelligence framework for games based on libGDX or not. Features: Steering Behaviors, Formation Motion, Pathfinding, Behavior Trees and Finite State Machines

God's actual programming language.

The XWiki platform

OpenGL/Vulkan Java 3D Engine

RedPen is an open source proofreading tool to check if your technical documents meet the writing standard. RedPen supports various markup text formats (Markdown, Textile, AsciiDoc, Re:VIEW, reStruc…

A high-level cross-platform 2D game development API

https://www.reddit.com/r/Android/comments/50rafp/meta_we_have_an_app_wiki_with_over_700_apps_made/

Icon Pack for Android Devices

Java game client and server based on the popular argentina MMORPG Argentum Online

A fork of KinoLog Android app with some extra functionnalities

⚡️ Android web server demo using NanoHTTPD through wifi hotspot/wifi network.

❓ Web Project like Quora with Spring MVC, Hibernate and Maven