Chumpu iMessage Sticker Pack - Animated Chumpu cartoon stickers for iMessage
Storyheap - Manage your SnapChat and Instagram stories.
StickerSDK.Mojitok.com - In-app store of animated emojis, GIFs, and stickers with personal curations for 10x engagement and revenue - as seen on Samsung Galaxy.
Storyly - Bring superb stories to your app
Sticker.Place API - Get stickers for your app
Bannerbear - Auto-generate IG Stories, Pinterest Pins and more