Everyone has that grumpy old man in their life, this iOS sticker pack is just that, I give you Grumpa! Grumpa is based on a very close friend of mine, it was and still is a fun process of learning how to develope sticker packs for iOS. This is a free sticker pack that is available now on the app store, below are some of the stickers, check them out! Also, don't be shy, follow the link to the app store and snag Grumpa to share with your friends.