Duckey - iOS keyboard for sending animated stickers
Lawnchair Launcher - A better Pixel Launcher
StickerPop API - Embed all the best stickers and GIFs into your apps.
Nova Launcher - Nova Launcher is an highly customizable, performance driven, home screen replacement for Android 4.
SketchKeys - Learn Sketch shortkeys easily w/ keyboard stickers
KISS Launcher - KISS is a fast launcher for your Android.