Jaya never meant to pry. The app had promised only one thing: show the high-resolution version of any Facebook profile picture with a single click. It was a small side project she built between shifts at the co‑op, a useful little tool for friends who kept uploading pixelated avatars. She posted it to a tiny corner of the web, half as a joke, half because the code was neat.

Professional Mode accounts get "Insights" showing total view counts, but still no individual names for profile visits.

How Facebook Profile Picture Viewers Work: The Technology, Risks, and Reality