TisaneAPI - Detect hate speech, cyberbullying, and more in 27 languages
Dialogflow - Conversational UX Platform. (ex API.ai)
YouTube Kids - YouTube for the youngins on iOS and Android
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Kidslox - Set boundaries for your kids
Botkit - Botkit is an open source developer tool for building chat bots, apps and custom integrations for major messaging platforms.