AI-Powered Sun Exposure Tracker
Inspired by hippos' natural sunscreen secrets, Yoyo uses your phone's camera to analyze shadow length and angle, calculating real-time UV intensity and accumulated skin damage.
Try the Demo →Point your phone at the ground and instantly see your shadow highlighted with a color gradient showing exactly how many minutes until your skin starts burning - the shadow visually shrinks in real-time as UV intensity peaks, making the invisible danger impossible to ignore.
AI-powered shadow detection instantly measures UV intensity
Cyclical notifications that keep coming back until you're safe
Monitor cumulative UV exposure and long-term skin health