TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
TextMe - TextMe is a free calls and messaging application at both local and international levels.
Feem - Share files offline. No servers. No cloud. No limits.
Talk360 - Talk360 is a best-in-class communication utility that offers a convenient way to connect with loved ones globally.
BeeBEEP - You can message and share files inside your intranet without a server.