Kilroy

Kilroy is an augmented reality app that turns the sky above you into a shared canvas for graffiti and art. Point your phone up, spray glowing strokes, and your tag stays anchored to that spot for anyone who looks up from the same place. Brushes include round, flat, spray, glow, and constellation styles. Nearby painters' strokes appear as they go, and a Gallery shows who is painting around you. Tags fade over time, so the sky is never finished. There are no accounts, ads, or tracking. When you finish a piece, Kilroy replays every stroke as a timelapse video you can post anywhere. Community guidelines apply, with built-in reporting and blocking and human review of reports.