- Senders send messages stamped with Bitcoin ecash to Nostr relays. The Nostr relays collect the Bitcoin ecash, then deliver messages to receivers.



Jami is described as '(formerly GNU Ring, SFLphone) positions itself as a potential free Skype replacement' and is a very popular instant messenger in the social & communications category. There are more than 100 alternatives to Jami for a variety of platforms, including Android, Windows, iPhone, Web-based and Mac apps. The best Jami alternative is Signal, which is both free and Open Source. Other great apps like Jami are Telegram, Element, Pidgin and Tox.



Converse is a messaging app for decentralized, secure, end-to-end encrypted conversations. Built on the XMTP network, Converse lets you own your conversations and take them anywhere whenever you want, ensuring your most important messages—the ones you never want to lose or be...



With BiP, you can send pictures and videos, documents, audio files, locations as well as text messages. Holding the microphone button is enough to send the audio recording.?




At this point in the digital world, our personal digital metadata – not just our messages, but data about who talks to whom, when, and where – has been marketed, auctioned, and monetized hundreds of thousands of times over.



Smoke Messenger is an open-source Instant Messenger that is known as the first mobile Messenger worlwide using the encryption algorithm McEliece. To be downloaded at F-Droid.org or Github.com. Smoke provides with its own Server-Software: SmokeStack-Echo-Server.



Nodecast is a file sharing software using BitTorrent protocol and based on qBitorrent code. It aims to be really simple by using spheres and respectful of private life.



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.




JioMeet is made in India free video-conferencing application. It can be used for 1:1 video calls and hosting meetings with up to 100 participants with enterprise-grade host controls.



The main purpose of Calyx Meet is to provide a secure, private, and free video conferencing platform that emphasizes user privacy and does not require personal information.

Sylk Suite allows the creation and delivery of rich multimedia applications accessed by SIP Clients, XMPP endpoints and WebRTC applications.



