ExtraBrain

Private macOS AI copilot for live interviews and meetings, real-time answer help.

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ExtraBrain is a free macOS AI copilot for live interviews, system design rounds, debugging calls, and technical meetings. It runs as a private overlay that can stay out of screen recordings, listens to and transcribes the conversation, reads selected on-screen context, and gives concise real-time answer help, with support for bring-your-own AI providers.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of ExtraBrain - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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