Gather Town - Spatial video-chat worlds for work and play

Dialogflow - Conversational UX Platform. (ex API.ai)

VRChat - Create and play in virtual worlds with others

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Topia - Create amazing wallpapers for your iPhone

Botkit - Botkit is an open source developer tool for building chat bots, apps and custom integrations for major messaging platforms.