InAppStory - Engage your customers with Stories right from your app or mobile web product with InAppStory.
Bannerbear - Auto-generate IG Stories, Pinterest Pins and more
Storyly - Bring superb stories to your app
Twitter Real-time Banner - Make your Twitter banner special and drive engagement!
Zuck.js - JavaScript library that lets you add Stories everywhere
Bannerify for Figma - Animate and export HTML banners from Figma in seconds.