Matrix defines a set of open APIs for decentralised communication, suitable for securely publishing, persisting and subscribing to data over a global open federation of servers with no single point of control.
Matrix.org vs Skype opinions
Feature-full modern free opensource instant messaging server with federation.
Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.
Linphone vs Skype opinions
Allows voice, video and text converstaions
Mattermost is a secure, open source platform for communication, collaboration, and workflow orchestration across tools and teams.
Mattermost vs Skype opinions
Its oriented on enterprize
With Viber, everyone in the world can connect. Freely. More than 460 million Viber users text, make HD-quality phone and video calls, and send photo and video messages worldwide over WiFi or 3G - for free.
Viber vs Skype opinions
Nearly all features that Skype offers plus CALL TRANSFERS from one device to another.
Viber is a poor clone of WhatsApp
had no problems until now and really high security standards
Cloud platform for video and audio conferencing, chat, events, contact centers, VoIP cloud phones, and webinars across mobile, desktop, and on-site room systems.
Zoom vs Skype opinions
Video-conferencing that actually works!
Rocket.Chat vs Skype opinions
Good alternative to Slack because it is free and self-hosted.
Zulip is a group chat app in which messages are threaded by topic, helping you have long-running, organized conversations. Zulip's threading makes it easy for people not always on chat (like managers, remote team members, contractors, part-time workers, etc) to weigh in on...
TeamSpeak is a proprietary Voice over IP software that allows users to speak on a chat channel with other users, much like a telephone conference call. A TeamSpeak user will often wear a headset with an integrated microphone.
TeamSpeak vs Skype opinions
Self-hosted, privacy, encrypted, free license for 32 slots
Facebook Messenger is a faster way to message. Reach friends right on their phones, get and send messages fast, message everyone at once and more.
Facebook Messenger vs Skype opinions
Microsoft Teams is the chat-based workspace in Office 365 that integrates your team's people, content, and tools to be increase engagement and efficacy.