Fleksy Keyboard works with all apps just like the Samsung keyboard and is back.
It comes with many themes, English or Spanish language capable, gesture the suggested word to see other possibilities, gesture up or down to shrink or enlarge the keyboard and has the same tap the space bar mid word to insert the word with a high degree of accuracy of it getting it right. If you tap the wrong letters the keyboard does a good job of inserting what you meant instead of the gibberish you accidentally typed.
One big flaw is alternate suggestions are very tiny so unless you're an owl, eagle or hawk it's pretty useless. For free I won't complain about something getting in on the ground floor of the development of watches that can send messages.