The 4.1.03 version of Fldigi for Mac is provided as a free download on our website. The application relates to Audio & Video Tools. The actual developer of this free Mac application is Fldigi Team.
From the developer:
Fldigi is a free to use digital modem, ARQ file transfer for Mac.
You may want to check out more Mac applications, such as flrig- or Aether, which might be similar to Fldigi.