KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
tuneX - Like tinder but for music creators
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
Stereofox - Find awesome new music, explore artists & create playlists
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
Symphona App - Designed to make orchestral staff management a breeze.