GIPHY has quickly become one of my favorite apps of the past year. Now, they have released an integrated keyboard addition for iOS that makes it even easier to insert GIFs into chats, emails, and other input areas on iOS.
I think you should download it.
Onto a related topic though: It looks like the common pronunciation of "GIF" really is now said with a hard "G" sound. Despite the GIF creator's insistence that it be pronounced like "JIF" (as in the peanut butter), there's a growing community of people who are insisting that the creator is wrong.