Riff by Facebook - Make videos with friends
Storyly - Bring superb stories to your app
Frames - Create & edit epic vertical video content from your phone
InAppStory - Engage your customers with Stories right from your app or mobile web product with InAppStory.
Uscreen - Uscreen is an all-in-one membership platform built for video creators to launch paid memberships that include an on-demand video library, live streaming capabilities, and their own community space, all in their own branded site and OTT apps.
Zuck.js - JavaScript library that lets you add Stories everywhere