Anonymous chat rooms based on geo location app

[omerklein]

Hi There, Some developers approached me with an idea to build an app for anonymous chat rooms based on geo location . In the past this field used to be hot with Mirc. I’m looking to explore the market before diving in. I know about YikYak and Whisper which are basically for anonymous posts. Is there any big/large-Scale service that offers the functionality of anonymous chat rooms based on geo location.