There are plenty of keyboard apps on the App Store that offer varying features to users. But you may want to think twice about downloading any one of them. Because of the level of access keyboard apps may ask for, they can snoop on your data pretty easily.
Avoiding third-party keyboard apps nowadays is especially good advice, since Apple has added highly requested features like a swipe-to-text keyboard and emoji stickers. If all else fails, we recommend that you avoid giving any keyboard Full Access to your phone.