Chatzy is described as 'Free private chat service which you can use to communicate with people you already know or people who visits your blog or website. With Chatzy you can create a chatroom and send out email invitations very quickly and easily. No registration is required' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Chatzy, not only websites but also apps for a variety of platforms, including Windows, Android, iPhone and Mac apps. The best Chatzy alternative is WhatsApp, which is free. Other great sites and apps similar to Chatzy are Wire, Zulip, Rakuten Viber and Conversations.
Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).
Kopete is an instant messenger supporting AIM, ICQ, Jabber, Gadu-Gadu, Novell GroupWise Messenger, and more. It is designed to be a flexible and extensible multi-protocol system suitable for personal and enterprise use.
FaceFlow is a free web-based application for video calling and group video calling. It also offers additional features such as chat rooms.
Line2 is a VoIP phone service that lets you call & text from a separate phone number via WiFi or 3G/4G/LTE. At a small premium, Text & call ANYONE in the US/Canada, forwarding & more. Pick any phone number.
Offers free global video and voice calling, group chat with up to 50 participants, in-app messaging that bypasses SMS plans, music clip sharing via Spotify, photo editing, gaming and gifts, animated messages, mini-games during calls, and centralized media gallery.
textPlus is the best way to send unlimited text messages from your android, iPhone, iPod, kindle, and windows devices with your textPlus phone number free and calling for just pennies.
Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure.
Ventrilo is a real-time voice chat software for group communications with surround sound support.
On-Meet is a free video conferencing platform that allows you to share your knowledge with your friends, colleagues and family.
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