WhatsApp is an iPhone and Android messaging app which allows you to exchange messages without having to pay for SMS.
Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).
An encrypted instant messaging with video call and GPS features for android.
Hype is a chat service built into the Opera Mini browser, so you can chat, share, and browse in one app. And when you find something online worth sharing, Hype makes it easy to do so with WebSnap.
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.
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).
all-in-one Communication and Collaboration Platform. The NYNJA platform combines the benefits of instant chat, video conferencing, screen sharing, file sharing, asset management collaboration, and much more, in one fast, easy and reliable platform.
Unofficial whatsapp web desktop client for OSX, Linux and Windows. Build with Electron.This app doesn't have any features at the moment.Discontinued
This app is discontinued. https://github.com/Enrico204/Whatsapp-Desktop/blob/master/README.md
Never ever miss a WhatsApp notification again while you are on your desktop computer. This extension makes it possible to receive WhatsApp notifications even when there is no WhatsApp tab or Chrome window at all open.