#6582
Logic Circuit Simulator Pro is an advanced and friendly Android application designed for electronics enthusiasts and professionals, developed by Stefan Belinov from Bulgaria. Whether you are a student learning about logic circuits or an experienced engineer working on complex projects, this simulator has everything you need.

#6362
Fritzing is a free (pay to download), open-source electronic design automation software for Windows, Mac and Linux platforms, developed by Interaction Design Lab Potsdam from Germany, using C++. It simplifies what PCB layout engineers did in the past, all using drag & drop method to easily finish complex circuit design.

#5558
Electrodoc (formerly called ElectroDroid) is a simple yet powerful collection of electronics tools and references specially made for all kinds of electronics developers, developed by IODEMA from Italy. It is of great help for both electronics students and engineers, and considered to be one of the necessary tools for electricians and workers in the electrical industry.