It uses a YikYak-like forum where patrons converse openly. You can also privately chat with other members not unlike Tinder. The main thing is: You can use the app however you see fit. How did you come up with Radiate? Radiate evolved from a series of ideas. Michael and I decided to combine my idea for Radiate with his idea for Ubble , a location-based community app. What sets you apart from other festival apps?