Echoo.

Echo is a location-based audio app. Record a short message and leave it where you are. Anyone who walks past later will hear your voice — like an echo that lingers. HOW IT WORKS • Hold the record button and speak for 3 seconds • Your echo appears on the map at your exact location • Walk near someone else's echo and it plays automatically • Echoes disappear automatically after 30 days DISCOVER YOUR SURROUNDINGS • See echoes from others on the map around you • The compass bar at the bottom shows direction and distance • Vibration when you get close to an echo LIVE • See who else is nearby at the same time (optional) • Real-time markers on the map No account needed. Just record and discover.