SUM - Secure Ultimate Messenger is described as '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' and is an app. There are more than 10 alternatives to SUM - Secure Ultimate Messenger for a variety of platforms, including Windows, Mac, Linux, Android and Android Tablet apps. The best SUM - Secure Ultimate Messenger alternative is Feem, which is free. Other great apps like SUM - Secure Ultimate Messenger are LAN Messenger, Squiggle, Winpopup LAN Messenger and Output Messenger.
Feem is the most popular Windows, Android, Mac & iPhone alternative to SUM - Secure Ultimate Messenger.
Feem is the most popular free alternative to SUM - Secure Ultimate Messenger.
LAN Messenger is a p2p chat application for intranet communication and does not require a server. A variety of handy features are supported including notifications, personal and group messaging with encryption, file transfer and message logging.
LAN Messenger is the most popular Open Source alternative to SUM - Secure Ultimate Messenger.
Squiggle is a free server-less peer to peer LAN messenger. Just download and run it and you're ready to talk to everyone on your LAN.
Winpopup LAN Messenger is a cost-effective Office, Corporate, Enterprise Instant Messaging solution.
Private and Secure Instant Messenger for Office designed specifically for keeping remote employees and multiple offices in sync.
"Give your team the freedom to chat, talk, share and interact together from anywhere, on any devices" by using it.
Output Messenger is the most popular Self-Hosted alternative to SUM - Secure Ultimate Messenger.
BigAnt Office LAN Messenger offers rich features for secure and stable business communication.
BigAnt Office LAN Messenger is the most popular commercial alternative to SUM - Secure Ultimate Messenger.
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?
LAN Messenger is a decentralized UDP IM-style chat client which supports usernames, guaranteed-delivery IMs, broadcast chat, encryption, file transfer, simple UI, persistent settings, and IP blocking.
Buzzed! Messenger is the most popular Web-based alternative to SUM - Secure Ultimate Messenger.
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...
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.
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