Tinode
Description: Tinode is an open-source real-time messaging and chat platform. It enables building chat applications and messaging features with REST API, Web and Mobile SDKs. Tinode offers messaging modes like one-on-one, group chats, channels, bots, rich media and end-to-end encryption.
Type: software
Pricing: Open Source
WhatsApp
Description: WhatsApp is a popular cross-platform instant messaging and voice over IP service owned by Meta. It allows users to send text messages, voice messages, video calls, images, documents and user location free over an internet data connection.
Type: software
Pricing: Free