Alternatives to appear.in for all platforms with any license

Skype

An instant messaging app that provides online text message and video chat services.

Freemium Mac Windows Linux Web Android ... iPhone Blackberry Chrome OS Windows S Android Tablet BSD Windows Phone iPad Apple Watch Android Wear PortableApps.com
Share your screen Video calling Exchange Integration IFTTT integration ... Microsoft Office integration Video calling Voice Call Add a feature

2375 Like
Hangouts

Hangouts is a messaging app that lets you send and receive messages, photos and more, and even start free video and voice calls – one to one or with a group! ...

Free Windows Web Android iPhone Chrome OS ... Android Tablet iPad Chrome Android Wear
Gmail integration Group chat Multi Device Support Texting ... Video calling Voice Call Voice messages WebRTC Add a feature

952 Like
Wire

Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages...

Free Personal $ $ $ Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad
End-to-end encryption Security focused Encrypted calls Encrypted chat ... Group chat Integrated File Sharing Photo Sharing Privacy focused Privacy Protected Share your screen Video calling Voice Call WebRTC Add a feature

169 Like
Jitsi

Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM...

Free Open Source Mac OS X Windows Linux Web Android ... BSD
End-to-end encryption Group chat iPhone/iPod sync Multiple protocols ... Multiple Account support OTR Video calling WebRTC Add a feature

275 Like
Jitsi Meet

Jitsi Meet is an OpenSource (MIT) WebRTC JavaScript application that uses Jitsi Videobridge to provide high quality, scalable video conferences.

Free Open Source Web
WebRTC Browser based Collaborative writing Conference Bridging ... Encrypted chat End-to-end encryption Group chat No registration required Peer-To-Peer Share your screen Video calling Add a feature

29 Like
Empathy

Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those...

Free Open Source Linux BSD
Built-in File transfer Multiple protocols Video calling Add a feature

154 Like
- Discontinued Empathy is currently unmaintained. Last version, 3.25, released in August 2017, can be still downloaded from the official website.
FaceTime

FaceTime is a video calling software feature developed by Apple for the iOS and Mac OS. FaceTime makes it possible to talk, smile, wave, and laugh with anyone on an...

Free Mac iPhone iPad
Integrated into iOS Video calling Add a feature

66 Like
YakYak

What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * ...

Free Open Source Mac Windows Linux Hangouts
Portable Add a feature

17 Like
ZOOM Cloud Meetings

Zoom, the cloud meeting company, unifies mobile collaboration, cloud video conferencing and simple online meetings into one easy-to-use platform. Stay connected...

Free Mac OS X Windows Android iPhone Android Tablet ... iPad
Share your screen Breakout rooms Add a feature

18 Like
Dialog Messenger

Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for...

Free Personal Mac OS X Windows Linux Web Android ... iPhone Self-Hosted
Encrypted chat Privacy protection Reactions Real time collaboration ... Team work Text chat Add a feature

24 Like
Zoiper

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...

Free Personal $ $ $ Mac OS X Windows Linux Web Android ... iPhone Windows Phone
No features added Add a feature

22 Like
VideoMeeting

VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC...

Free Open Source Web Chrome OS Self-Hosted
Video calling Add a feature

4 Like
Hubl.in

Hublin is a free and open source videoconference software provided as a SaaS . It allows to create videoconference without effort and to discuss with up to 8 people at...

Free Open Source Web
WebRTC Add a feature

9 Like
Tkabber

Tkabber is a Free and Open Source client for the Jabber instant messaging system. Its writen in Tcl/Tk, and works on many platforms (tested on Linux, FreeBSD, NetBSD...

Free Open Source Mac OS X Windows Linux BSD
No features added Add a feature

12 Like
Voxeet

Free HD conference calls up to 8 participants. High definition voice, 3D immersive sound.

Commercial Windows Android iPhone Android Tablet iPad
Integrated File Sharing Real time collaboration Team Collaboration WebRTC Add a feature

33 Like