Close more deals — by answering the harder questions your buyers are now asking, live, in the call.
AI changed B2B selling. Buyers arrive with prep that used to take a week, done in two hours with AI. The questions are sharper. The bar for in-the-moment answers is higher. Deals that used to close on follow-up now close — or die — in the room.
Headsum is a Mac app that sits quietly in the background during your calls and surfaces the right answer, the right proof point, and the right next move. Grounded in your own playbooks, decks, and case studies. No hallucinations. 

Built for B2B sellers, founders selling their own product, and revenue teams who can't afford to lose deals in the room.
Built in London, 2024. We take what behavioral science says about memory, attention, and performance under pressure and build the sales tool that respects it.
Free Mac app → https://www.headsum.com/download/

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