Storyheap - Manage your SnapChat and Instagram stories.
DataTip - The fastest way to store & access your critical datapoints.
Storyly - Bring superb stories to your app
Proof.ink - Proven immutable data stored on the Steem blockchain
Bannerbear - Auto-generate IG Stories, Pinterest Pins and more
Immutable.js - Immutable persistent data collections for Javascript which increase efficiency and simplicity. - immutable-js/immutable-js