How it works

  1. Drop the clip: A hook you're testing, an ad before launch, a reel sitting in drafts. Any format, vertical or horizontal, up to 15 seconds.

    Drop the clip

    A hook you're testing, an ad before launch, a reel sitting in drafts. Any format, vertical or horizontal, up to 15 seconds.

  2. We analyze: A modeled audience watches while we map the brain response across vision, sound, memory, attention, language.

    We analyze

    A modeled audience watches while we map the brain response across vision, sound, memory, attention, language.

  3. See results: A virality score, a peak hook timestamp, a hold rate, and a heatmap showing exactly which regions of the brain your clip is firing.

    See results

    A virality score, a peak hook timestamp, a hold rate, and a heatmap showing exactly which regions of the brain your clip is firing.

Engagement score

One number for how long people will actually watch. Not a guess, not a vibe check - a modeled read on whether your clip earns the scroll or loses it. The closest thing to a test screening before you hit publish.

Engagement score

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