Acrylic Charms by Sticker Mule - Add some charm to your life.
GIPHY for iMessage - The easiest way to share all the GIFs in all your txts
Sticker.Place API - Get stickers for your app
Doll Up Stickers - Dress up your messages.
StickerPop API - Embed all the best stickers and GIFs into your apps.
Bobble Stickers for iMessage - One selfie, Unlimited Stickers!