SUM is a simple secure desktop instant messenger for local networks. No server infrastructure is needed. All communication is encrypted and nothing saved on any server.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Windows

Winpopup LAN Messenger is described as 'Cost-effective Office, Corporate, Enterprise Instant Messaging solution' and is a instant messenger in the social & communications category. There are more than 10 alternatives to Winpopup LAN Messenger for a variety of platforms, including Windows, Mac, Linux, Android and Android Tablet apps. The best Winpopup LAN Messenger alternative is Feem, which is free. Other great apps like Winpopup LAN Messenger are LAN Messenger, Secure copy, qchat and BORGChat.
SUM is a simple secure desktop instant messenger for local networks. No server infrastructure is needed. All communication is encrypted and nothing saved on any server.

BigAnt Office LAN Messenger offers rich features for secure and stable business communication.

Is your company starting to experience communication problems? Does it take too much time to call your co-workers to invite them to a group meeting? Hate walking all over the building to solve some trivial issue?



You want the power and convenience of instant messaging, but don't need or want the clients to talk to the outside world. Be it a bunch of friends having a LAN party, or a large corporation - instant messaging makes working together easy.

Intra-office communication is essential to modern businesses; you need to be able to call your employees to meetings or update a project group quickly, easily and securely. As we all know, Internet IM applications are neither necessarily fast nor safe, and with security issues...




BizChat is an enterprise collaboration app that allows public & private chat, access employee directory, get news feed and set your to-do-list. It’s a great tool to help businesses connect people & information.




BizChat is the most popular Web-based alternative to Winpopup LAN Messenger.

This lightweight tool monitors a shared text file and displays on-screen alerts when a message is detected. Customize the message to fit your organization’s needs.

AChat enables you to chat on your local network (LAN). But you can also share entire directories or send specific files, show images to other users and send messages even to users who are currently offline. Everything with full Unicode support.