Upload any video, image, or audio. BrainLens predicts activation across 39 brain regions — visual processing, emotion, attention, memory, and more. Compare two assets side-by-side to see which wins and why. Trained on fMRI data from 100+ subjects, 57,000+ images, and 1,000+ videos. Picks the real-world winner 82% of the time. Companies pay $200K+ per neuromarketing study. We charge $0.99.