Alternatives to Voxox CloudPhone for all platforms with any license

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 ... Voice Call Voice messages WebRTC Add a feature

946 Like
WhatsApp Messenger

WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. WhatsApp Messenger is available for...

Free Mac Windows Web Android iPhone ... S60 Blackberry Windows S Android Tablet Windows Phone Blackberry 10 Android Wear Kindle Fire
End-to-end encryption Built-in File transfer Encrypted chat Group chat ... Mobile friendly Based on phone number Video calling Voice messages Add a feature

603 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

163 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

273 Like
appear.in

Video conversations with up to 8 people in your browser - no downloads, no login. Just name your channel and you are on. Works in all modern browsers, even mobile.

Freemium Windows Web Android iPhone Chrome OS ... Android Tablet iPad
Anonymity Anonymous email Group chat No installation ... No registration required Stickers WebRTC Add a feature

64 Like
Adium

Adium is a free and open source instant messaging application for Mac OS X, written using Mac OS Xs Cocoa API, released under the GNU GPL and developed by the Adium...

Free Open Source Mac OS X
Customizable Multiple languages Multiple protocols OTR ... Tabbed interface Support for Themes Add a feature

329 Like
join.me

Easy to start, easy to join and with no downloads for viewers, connecting for external presentations, sales demos, and ad hoc get-togethers means you get work done and...

Freemium Mac OS X Windows Android iPhone
IFTTT integration Portable Remote desktop Share your screen Add a feature

116 Like
Zulip

Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations....

Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet BSD Self-Hosted
Threaded Conversations Group collaboration Chat Bot Community based ... GitHub integration Group chat Integrated File Sharing MarkDown support Team Collaboration Add a feature

114 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.
Gajim

The goal of Gajim is to provide a full featured and easy to use Jabber client. Gajim works nicely with GNOME, but does not require it to run. It is released under the...

Free Open Source Mac OS X Windows Linux BSD Xfce
Encrypted chat Group chat Multiple languages OTR ... Supports XMPP Tabbed interface Video calling Add a feature

51 Like
YakYak

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

Free Open Source Mac OS X Windows Linux Hangouts
Portable Add a feature

17 Like
IM+

Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Google Talk, AIM, Jabber, ICQ, Facebook, MySpace and Twitter on ALL...

Freemium Web Windows Mobile Android iPhone Java Mobile ... S60 HP webOS Blackberry Android Tablet Windows Phone iPad Kindle Fire
Multiple Account support Multiple protocols support Add a feature

103 Like
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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
Nimbuzz

Nimbuzz offers limited availablility free calls and limited availability free text messaging for users via 3G and WiFi. Calls to other Nimbuzz users are free. PAY to...

Freemium Mac OS X Windows Web Android iPhone ... Java Mobile S60 HP webOS Blackberry Android Tablet Windows Phone iPad Chrome Kindle Fire
Voice Call Add a feature

117 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