Free Android App for WiFi Calling | Talkie - Wi-Fi Calling, Chats, File Sharing

How to block and benefit from the Talkie application - send phone files and chat via wifi

Chit-Chat : Wi-Fi Direct Chat App

Hike | Chat,Share files and much more without INTERNET!!!

Vojer Messenger - secure Walkie Talkie to chat peer to peer without Internet (Preview)

WiFON: an app to text without Internet connectivity

Try Zapya Offline Chat

A chatting app which works on wifi tablet