Storyly - Bring superb stories to your app
Momentic - A new visual storytelling app for iOS.
Zuck.js - JavaScript library that lets you add Stories everywhere
Storybird - Visual storytelling community
Stories as a Service - Add stories to your website with 1 line of code
Firework Web Story Platform - Firework brings the TikTok/IG/Snap Story experience into any Website or any app.