Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Gomix - The easiest way to build the app or bot of your dreams
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
Facebook Messenger - Facebook Messenger is a faster way to message.
Meya.ai - Build, train and host sophisticated bots.