WhatsApp is described as 'Free messaging without SMS fees, web sync, and multimedia sharing, supporting group and video chats, available on iPhone, Android, and desktop' and is a leading instant messenger in the social & communications category. There are more than 100 alternatives to WhatsApp for a variety of platforms, including Android, iPhone, Windows, iPad and Web-based apps. The best WhatsApp alternative is Signal, which is both free and Open Source. Other great apps like WhatsApp are Telegram, Element, Wire and Tox.
ROOM-39 is a privacy-preserving, security-focused social platform built on a zero-knowledge architecture. Unlike standard messengers, ROOM-39 is designed under the principle that privacy is enforced by mathematics, not trust.
Yandex.Messenger is an instant messenger app for friends and family. Get together with your loved ones, extended family, or people you know from your cooking class to quickly discuss anything in a matter of seconds.
Numbertank is a place to express yourself, discover yourself, and bond over the stuff you love. Whether it’s fandoms or philosophy, fashion or felines, Numbertank is where your interests connect you with your people.
monocles chat is a fork of blabber.im and Conversations with some changes, to improve usability.
SureSpot is an open source encrypted messenger designed to make encrypted messaging simple and accessible to anyone.
Crypho is a Software-as-a-Service solution for end-to-end-encrypted enterprise file-sharing and communication.
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.
Lightweight and powerful XMPP client for iPhone and iPad, with audio and video calls and built-in privacy
Instantbird is an instant messaging client based on Mozilla XULRunner and the open source library libpurple created by the software developers of Pidgin . Over 250 add-ons allow user customization of, and addition of, features.
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.
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