AddSubtitles 5.6.4 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. This free Mac app is an intellectual property of LegoTech. The application is categorized as Audio & Video Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Add Subtitles is an application that adds automated subtitles to your own video/audio files. The utility is suitable for video editors, audio transcribers, and subtitling companies. The subtitles are generated automatically for unlimited video length. Text warnings will be highlighted in orange color. However, text alternatives are available.
You may want to check out more Mac applications, such as Video Add Subtitle Pro Lite or Video Add Subtitle Pro, which might be similar to AddSubtitles.