Rumblr, the ‘Tinder for Fighting’ app, to launch its beta trial on Nov. 9; ‘This application is 100% serious,’ team says Prison Planet.com Posted on November 9, 2015 Posted in Aggregated No Comments Tagged with U.S. News NY Daily News | First rule of the fight app — don’t talk about the fight app. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email