Open right now, similar to Pictographs -
Betas taking testers at the moment, checked by CodeWing.
Getting Started with the Pictographs - Beta
About Pictographs -
Pictographs make it easy to enter slightl-odd characters on your iPhone and iPad, for example:
‽, ∞, ≠, ®, ©, ™, ¢, º, ∞, ∅, and many more.