MongooseIM platform The massively-scalable XMPPJabber mobile messaging platform, for mobile and web, by Erlang Solutions. Free Open Source Mac OS X Linux Amazon Web Services Microsoft Azure Voice Call Add a feature 10 Like
Applozic Applozic's white labelled mobile native SDK enables 'whatsapp' like instant messaging capabilities and more to mobile apps and website in just 30 mins. Freemium Android iPhone No features added Add a feature 6 Like
Layer messaging back-end for mobile and web apps. Commercial Web Android iPhone No features added Add a feature 3 Like
QuickBlox Cloud communication and data backend. Supports chat, video calling, push notifications as well as data APIs for iOS, Android, Javascript and Windows. Freemium Mac OS X Windows Web Android iPhone ... Android Tablet Video calling WebRTC Add a feature 1 Like
SendBird SendBird is messaging-as-a-service. It provides the client SDK, chat API, and the backend for apps enabling real-time communication among apps’ own users. Commercial Android iPhone No features added Add a feature 5 Like
