Matchering - Open-source audio mastering app that masters music based on any reference track you provide.
eMastered - eMastered makes a song sound better through online mastering.
Studio One - Studio One raises the bar for music production software. Developed by PreSonus, this platform has been used by both professional and amateur artists to make live and studio recordings.
Cubase - Cubase is one of the world’s most powerful music creation software packages. From first idea to finished recording, Cubase helps you to make outstanding music.
mix:analog - a sound studio from the cloud that you control
GarageBand - GarageBand is a fully equipped music creation studio for Mac