Tempo is a privacy-focused messaging app designed for secure communication. Features include end-to-end encryption, restrictions on screenshots and screen recordings, and self-destructing messages.




XMPP is described as 'Or Extensible Messaging and Presence Protocol, is an open standard for instant messaging and real-time communication, allowing for message exchanges between any two entities on the Internet. It's known for its decentralized and extensible nature' and is a instant messenger in the social & communications category. There are more than 25 alternatives to XMPP for a variety of platforms, including Android, Mac, Windows, iPhone and Web-based apps. The best XMPP alternative is Matrix, which is both free and Open Source. Other great apps like XMPP are Jami, WhatsApp, Conversations and Adium.
Tempo is a privacy-focused messaging app designed for secure communication. Features include end-to-end encryption, restrictions on screenshots and screen recordings, and self-destructing messages.




Boltgram is a fast, secure and nice messaging app that uses Telegram’s API. You can enjoy all the features of Telegram, such as end-to-end encryption, cloud-based storage, group chats, channels, bots, stickers, and more. But that’s not all.


The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications.
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