Hi guys,

I'm thinking of using 2 android tablets on a wall to relay messages to the busy part of the store over peaks. I'm hoping to find an android app that will work offline and doesn't need registration, just basic device to device sending. I have a wifi router setup but this doesn't have internet access.

Not sure if I'm not googling quite the right terms, can't quite find anything :/
Does anyone know of anything like this?