Alternatives to Zoiper for all platforms with any license

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...
- Sound quality, open source, multiplatform, multi channels, and a long list of features damodaranudas • Mar 2017 • 2 agrees and 0 disagrees
Free Open Source Mac Windows Linux Web Android ... iPhone BSD iPad
Apps with End-to-End Encryption Group chat iPhone/iPod sync Support for Multiple protocols ... Multiple Account support OTR Video calling WebRTC Add a feature

293 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...
- Wire does not do SIP. Zoiper is a SIP softphone Guest • Jun 2017 • 7 agrees and 0 disagrees
- They're completely different things. Zoiper does SIP and IAX. Wire is a proprietary setup. Guest • Mar 2018 • 3 agrees and 0 disagrees
- Wire doesn't do SIP which is what Zoiper does. Guest • Apr 2018 • 1 agrees and 0 disagrees
- Main funcionality from Zoiper: SIP. It's not supported by Wire Guest • Jun 2018
- Zoiper allows you to call a regular phone number using a standard VoIP service (SIP or IAX) - the other person doesn't have to use Zoiper. Guest • Feb 2019
Free Personal $ $ $ Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad
Apps with End-to-End Encryption Encrypted chat Security focused Encrypted calls ... Group chat Voice Call Anonymity Integrated File Sharing Open Source apps Photo Sharing Privacy focused Privacy Protected Share your screen Secure File Sharing Video calling WebRTC Add a feature

199 Like
Jami

Voice, video and chat communications, secure, decentralized, strong privacy and freedoms.

Free Open Source Mac Windows Linux Android iPhone
Decentralized Distributed Apps with End-to-End Encryption Peer-To-Peer ... Share your screen Video calling Add a feature

111 Like
Linphone

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant...

Free Open Source Mac Windows Linux Web Windows Mobile ... Android iPhone Android Tablet Windows Phone iPad Xfce
Encrypted VoIP calls Live Push Notifications Video calling Add a feature

111 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 Live topics MarkDown support Team Collaboration Add a feature

136 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 Progressive Web App Stickers Web-Based WebRTC Add a feature

65 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...
- Discontinued Empathy is currently unmaintained. Last version, 3.25, released in August 2017, can be still downloaded from the official website.
Free Open Source Linux BSD
Integrated File Sharing Support for Multiple protocols Video calling Add a feature

153 Like
Ekiga

Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols. It supports many...

Free Open Source Windows Linux PortableApps.com
Portable No login Video calling Add a feature

68 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

18 Like
CSipSimple

csipsimple will allow native sip for android device. It relies on the pjsip SIP stack and use the pjsip-jni project. The use of this native library will ensure a...
- Discontinued Possibly discontinued. App hasn't been updated since November 30, 2014.
Free Open Source Android
Call hold Call Transfer Multi Account Switching Nativ Address Integration Add a feature

35 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 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
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 Windows
Video calling Voice Call Add a feature

20 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

17 Like
3CX Phone System

3CX is a software-based, open standards IP PBX that offers complete Unified Communications, out of the box.

Freemium $ $ $ Mac Windows Linux Web Android ... iPhone Microsoft Exchange Server Chrome Microsoft Office Suite Firefox
No features added Add a feature

9 Like
SeaFour.club

SeaFour.club is a socket webchat supporting aesthetic username customization and stylized messages using a markup language similar to 'LISP', and supports a...

Free Open Source Linux Web BSD
Ad-free Group chat Lightweight Add a feature

9 Like