Kids Keyboard - by a Christian

Wholesome oriented features:

=> No Emojis
=> No GIFs
=> No predictions

Other features

=> Small download size (<1MB)
=> Adjustable keyboard height for more screen space
=> Number row
=> Swipe space to move pointer
=> Delete swipe
=> Custom theme colors
=> Minimal permissions (only Vibrate)
=> Ads-free
Feature it doesn't have and probably will never have: