Smooch.io for Facebook Messenger - Message your customers from Slack, Front, a bot or anywhere!
Webiny - The Enterprise CMS platform that you can host on your cloud
GetChat.App - Add WhatsApp chat to your website for free
Kodular - Much more than a modern app creator without coding
Avochato - Text messaging for your business.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.