Open-source, cross platform Qt based IDE for reverse-engineering
A full-featured package manager and viewer for Android
A reverse engineering suite (decompiler, editor, debugger and more)
Qt based Veroboard, Perfboard, and PCB layout and routing application
UML diagram editor
Android Tools is powerfull Software for your Android Phone.
APKRepatcher helps you to modify an existing apk with simple GUI
Android All In One Toolkit 2.0