LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
SHAREit - SHAREit allows you to transfer files and data from your phone to another device without having to rely on WiFi or a data plan.
MyChat - Secure instant messenger for any network
XShare - XShare – File Fast Transfer developed and published by Shalltry Groups.
BORGChat - BORGChat is a LAN messaging software program.
Send Anywhere - Send whatever you want, wherever you want