Simphone is described as 'Secure and private open source peer-to-peer Instant Messenger' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Simphone for a variety of platforms, including Linux, Windows, Mac, Android and iPhone apps. The best Simphone alternative is Signal, which is both free and Open Source. Other great apps like Simphone are Telegram, Element, Discord and Pidgin.
Silent Phone – Secure Encrypted Video & Voice Mobile Phone Calls
You now have the ability to have secure encrypted phone calls between Silent Circle members, anywhere, anytime, with complete control.
Make a secure call as easy as an ordinary call and be sure of real safety.
United States
SafeSwiss The world’s most effective end to end encryption security solution including P2P Voice, encrypted email, encrypted storage, ephemeral text chat, docs share & group chat for mobile phone devices and PC's.
Switzerland
Tok is easy-to-use software that adopts peer-to-peer communication, end-to-end encryption technologies. With Tok,you can send messages, photos, videos and files of any type without anyone else listening in.
Ricin aims to be a secure, lightweight, hackable and fully-customizable Tox client with focus on user experience. Development is lead by SkyzohKey.
alfaview is an in-sync high-tech video conference solution that enables you to hold online meetings across the world with live video transmission.
Germany
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Toxic is a client with an ncurses interface, written entirely in C. It has support for all basic features, as well as 1-on-1 audio/video chats, and is capable of working on bare-bones systems that lack graphical interfaces.
Canada
Messenger for WhatsApp™ (WA Messenger) is a wrapper for WhatsApp Web. It loads WhatsApp Web in toolbar popup UI and has badge icon text notification for all new conversations (even if toolbar popup is closed).
United Kingdom
Webrowse helps your team easily collaborate via a shared browsing window during your online meetings. Webrowse is based in chrome, and so regardless of the meeting platform you use, you and your team can easily collaborate inside Chrome.
United States
A simple-to-use messaging app for 1:1 communication and small groups supporting SMS, MMS, matrix and XMPP through libpurple.
United States
Zero-knowledge security with end-to-end encrypted sharing, eSignatures, comprehensive audit trails, and real-time collaboration. Ensures data sovereignty, access control, secure messaging, and protection for confidential files, documents, and meetings for enterprises.
Australia
TeamViewer Meeting keeps you connected to your contacts and teams through secure videoconferencing and VoIP calls, instant chat, screen sharing, and more across devices and platforms — anywhere you meet.
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