Citizens report U.A.P. sightings on the Enigma app and can also view reports clustered by location. An augmented-reality lens lets users point a phone upward, and then displays and I.D.s planes, satellites, and other mundane objects. A, who is tall and thin, said, “It’s Shazam for what’s in the skies.” There’s also a camera feature that records uncompressed video and embeds metadata, such as filming location and angle, for later description and verification of phenomena.