Sticker Maker for WhatsApp - Sticker Maker for WhatsApp is a free mobile app that allows you to create personal WhatsApp stickers, funny images, text stickers, and lots of other exciting stuff for chatting.
Acrylic Charms by Sticker Mule - Add some charm to your life.
Smart Stickers - 90 catchy illustrations for attractive designs
Sticker.Place API - Get stickers for your app
GIPHY for iMessage - The easiest way to share all the GIFs in all your txts
StickerPop API - Embed all the best stickers and GIFs into your apps.