Synth 76477 1.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Synth 76477 for Mac lies within Audio & Video Tools, more precisely Music Production. This Mac application is a product of Black Cat Systems. We recommend checking the downloaded files with any free antivirus.
From the developer:
Synth 76477 is a powerful sound effects generator and synthesizer app, inspired by the famous SN76477 integrated circuit from the 1970s, but containing many enhancements.
You may want to check out more Mac applications, such as AX-Synth Editor, AX-Synth Librarian or DJ Loop Synth, which might be similar to Synth 76477.