Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Matchering - Open-source audio mastering app that masters music based on any reference track you provide.
Invision - Prototyping and collaboration for design teams
Lurssen Mastering Console - Digital audio mastering powered by years of pro-quality mastering experience.
Sketch - Professional digital design for Mac.
Audio Mastering - Pro quality, fully functional audio mastering application for iPad.