Alternatives to Phoner 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
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
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
MicroSIP

MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or on regular telephones) via open SIP...

Free Open Source Windows PortableApps.com
No features added Add a feature

16 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
Ayttm

Ayttm is an instant messaging (aka chat) client that provides all-in-one chat functionality for several major instant messaging services from one simple program. Ayttm...

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

11 Like
Messenger for Desktop

A simple & beautiful app for Facebook Messenger. Chat without distractions on any Operating System.

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

8 Like
- Bundleware Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
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MetroIRC

An IRC client for the Windows desktop which follows the Metro design guidelines.

Free Open Source Windows
No features added Add a feature

7 Like
X-Lite

Combining voice calls, video calls and Instant Messaging in a simple interface, CounterPath's X-Lite helps you seamlessly transition from a traditional phone...

Commercial Mac OS X Windows
Video calling Voice Call Add a feature

19 Like
Tango

Tango allows you to easily connect with friends & family or make new friends. Make video & voice calls, send text messages, play games, send music messages...

Freemium Android iPhone Android Tablet iPad
Photo Sharing Video calling Voice Call Add a feature

26 Like