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



Messenger is described as 'Offers group video calls, voice calls, and instant messaging with photo sharing, real-time notifications, and location mapping for seamless connectivity' and is a very popular instant messenger in the social & communications category. There are more than 100 alternatives to Messenger for a variety of platforms, including Android, iPhone, Windows, Mac and iPad apps. The best Messenger alternative is Signal, which is both free and Open Source. Other great apps like Messenger are Telegram, Element, Pidgin and WhatsApp.



VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC that can provide communication features within your web browser.

Prose is a distributed, open-source, and native platform for workplace communication.



Spot-On is Encryption software that securely connects two friends for chat, group chat, email, file sharing and file transfers with magnet links and P2P web search.





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.




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).

Make video calls to anybody in the world with a private connection. Share the conversation by sharing url.

MobileVOIP is an app that enables affordable VoIP calls from mobile devices, both nationally and internationally, potentially reducing phone costs. The app integrates with your device's contact list, allowing calls via MobileVOIP anytime, anywhere.




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




Spotbros is an app where you can discover and share all types of content through public chat groups (Spots) or with your friends through private chats.



Zom's security and privacy features are powered by the amazing foundation created by the ChatSecure project, and works with other great apps like Conversations.