Shutterstock Reveal - Find images online to reveal a match on Shutterstock
Storyly - Bring superb stories to your app
Pexels - Find the best free stock images about Browser Home Page. Download all photos and use them even for commercial projects.
Zuck.js - JavaScript library that lets you add Stories everywhere
AllTheFreeStock - All the free stock images, videos and icons in one location
InAppStory - Engage your customers with Stories right from your app or mobile web product with InAppStory.