to Stories - Create stories from website link, podcast, YouTube, tweet, quote, text, photo or video
Storyly - Bring superb stories to your app
Startups Anonymous - Anonymously ask questions and share stories. AA for Startups
InAppStory - Engage your customers with Stories right from your app or mobile web product with InAppStory.
STLLR - Hire Top 1% Marketing Experts.
Zuck.js - JavaScript library that lets you add Stories everywhere