My friend mentioned YikYak as a potential competitor to me several months ago. I tried to install their app but I think they had taken it down for a few months.

My friend mentioned YikYak as a potential competitor to me several months ago. I tried to install their app but I think they had taken it down for a few months. Fast forward and YikYak does have some similarities. The main differences are that YikYak has a universal 5 mile radius, all messages are in the same "namespace", and they're anonymous, plus no map. I'm sure they anonymize the posting location with jitter to promote anonymity. Radar Chat definitely caters to a different use-case with the precision of the post being important. If you leave a "whisper" message (L1), it has a radius of around 10 meters, which isn't as useful for shouting ideas to the masses like YikYak.