Caliopen is described as 'All of your private messages (Email, Facebook, Twitter, Instagram etc.) through a single login' and is an website in the social & communications category. There are more than 25 alternatives to Caliopen, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and iPhone apps. The best Caliopen alternative is Rambox, which is free. Other great sites and apps similar to Caliopen are Franz, Empathy, WebCatalog and Ripcord.
Konnektor is the developer-friendly alternative to Sameroom. It allows you to do the same but in a different manner. Currently you can use Konnektor for free if you deploy it on your own host.
SafeSwiss The world’s most effective end to end encryption security solution including P2P Voice, encrypted email, encrypted storage, ephemeral text chat, docs share & group chat for mobile phone devices and PC's.
Sameroom helps connect chatrooms (even when they’re running on completely different services).
Cutegram is a free and opensource telegram clients for Linux, Windows, OS X and OpenBSD, focusing on user friendly, compatibility with desktop environments.
Messenger for WhatsApp™ (WA Messenger) is a wrapper for WhatsApp Web. It loads WhatsApp Web in toolbar popup UI and has badge icon text notification for all new conversations (even if toolbar popup is closed).
No matter which channel your clients prefer, ChatWerk combines the most popular messengers, from WhatsApp to Instagram into one inbox. Easy-to-use app that enables entrepreneurs to chat with their customers, ask for reviews, and share information with their team on the go.
Sim-IM, Simple Instant Messenger, is a multiple protocol instant messenger for MS Windows, GNU/Linux, FreeBSD. Sim-IM supports Jabber/XMPP, Google Talk, ICQ and AIM (Oscar), Yahoo! Messenger and Microsoft Messenger (MSN)
Brand your online video calls, meetings, and conference room in seconds. All done in the browser. No download and installation required. FREE for 2 months!.
Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently Fire handles AOL Instant Messenger®, ICQ®, MSN® Messenger, Jabber, limited IRC, Yahoo!®, and Apple Bonjour communications.
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