In early November 2015, online rumors reported that a new app called Rumblr enabled users to arrange real-time organization of street fights. Inevitably, Rumblr was compared to "hookup app" Tinder ...

Rumblr, an app that helps people find and engage in recreational fighting, is set for a test release Monday. A beta trial version will go to the first 2,000 individuals who registered to use the app, ...