InAppStory - Engage your customers with Stories right from your app or mobile web product with InAppStory.
Storyly - Bring superb stories to your app
Zuck.js - JavaScript library that lets you add Stories everywhere
Storyteller - Storyteller's end-to-end platform gives you a best-in-class Stories experience in days with native SDKs, publishing tools, analytics, and ad support.
Fastory - Craft stunning Instagram stories, share them everywhere 🚀
Facebook Stories - Snapchat clone rolled out to users worldwide