Supavoice

Supavoice is a macOS utility for people who would rather speak than type. It captures audio from your microphone, sends it to OpenAI, and returns a highly accurate transcript that you can drop into any application on your Mac via a global shortcut. Because it works system-wide rather than inside one editor, it fits into existing habits in Mail, Slack, notes apps, or a code editor without changing your workflow.

What separates it from many dictation tools is the formatting layer. Instead of raw stream-of-consciousness text, Supavoice can shape the result: an Email mode produces structured messages with greetings, Note mode organizes ideas into bullet points, and Message mode keeps a casual conversational flow. A custom mode lets you define your own rules, and a personal dictionary handles technical terms, acronyms, and proper nouns so names come out correctly capitalized.

The commercial model is deliberately simple. It is a one-time purchase paired with your own OpenAI API key, which means there is no subscription and your audio goes directly from your machine to OpenAI rather than through the vendor's servers. The trade-offs are that this is macOS-only, you need to manage your own API key and usage costs, and refunds are not offered on the instant digital delivery.