Mojirater - Emoji reactions & social share buttons for your site
Dialogflow - Conversational UX Platform. (ex API.ai)
Slackmojis - A directory of the best custom slack emojis
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Facebook Reactions - A more expressive Like button
Botpress - Open-source platform for developers to build high-quality digital assistants