A Seoul student's shade-routing app topped Apple's navigation chart
During South Korea's record summer heat, a 23-year-old Seoul National University student released Geuneullo, an app that works out where buildings and street trees cast shade and recommends the shadiest walking route. He built it from OpenStreetMap and public government data, and by early August it had topped Apple's free navigation chart, ahead of Google Maps, according to the Korea Herald.During South Korea's record summer heat, a 23-year-old Seoul National University student released Geuneullo, an app that works out where buildings and street trees cast shade and recommends the shadiest walking route. He built it from OpenStreetMap and public government data, and by early August it had topped Apple's free navigation chart, ahead of Google Maps, according to the Korea Herald.Expert summary pending. Showing the newcomer version.