While at Apple Park this week for WWDC, I had the opportunity to sit down with two Swift Student Challenge Distinguished Winners to talk about their apps and what it’s like giving a surprise demo to Tim Cook and John Ternus. Asuo by Karen-Happuch P. Henneh First, I chatted with Karen-Happuch P. Henneh, the developer behind an app called Asuo . Asuo is an offline flood navigation app that uses flood data and weather forecasts to guide people in making safer travel decisions. Karen explained to me: My app is called Asuo, which means flowing water in my language. I’m from Ghana in West Africa. Anytime it rains, the streets get flooded. I even have videos from just Monday showing what the streets look like. A lady driving might just drive into a flooded area because the normal GPS is only going to tell you, “Turn right, turn left.” And with the weather, it’s just going to tell you it’s going to rain from this time to that time.…