WhatsApp

Hiddy- Stay hooked up with your network/buddies using instant chat app

Hiddy is the instant chat app, identical to Whatsapp, which can help you stay hooked with your buddies on personal chat and also helps in business chat (also video and audio chat on both) to keep your circle updated. It has got many intriguing features like mark a chat as favorite, then it will be prior to all chats on the list and channels to broadcast the messages, added with default ones. Hiddy readily available on native Android and ios app can also be entirely customized to work and look in the way you prefer.

tanvy perg
Java

https://appkodes.com/chat-app-script/
tanvyperg
Commercial
Internal private chat application
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Looking for Internal private messaging Software for Business check Output Messenger it’s best internal team collaboration Application Similar to Slack and winpopup. features are internal file sharing, internal mailing, group chat room, audio chat, video group chat conference desktop sharing etc..,

Srimax
ASP.Net

http://www.outputmessenger.com/lan-messenger-downloads/
Srimax Software System PVT LTD
Commercial
http://www.outputmessenger.com/wp-content/themes/outputmessenger/images/outputmessenger-one-to-one-chatwindow.png