Launched on September 27th, 2017
Emojiboard is a custom iOS keyboard that replaces the standard "grid of a thousand Emoji" with a neural-net powered sketch recogniser. It turns even the most amateurish drawing of "smiling poop" into the hallowed creature itself: 💩. Because it's a custom keyboard it works in every app! Enjoy it, and please reach out if you've questions 😃.
I don't think this is worth it to install a whole app, to add the related keyboard to iOS, and to switch to this keyboard when you want to find an emoji.
The basic iOS keyboard is good enough at showing the most used emojis, and that's quite unusual to look one hour for a single emoji :|