Never Alone: Ki Edition uses a virtual on-screen control pad, also known as a "virtual D-pad." If you have never played a touchscreen game with this style of controls before, you may find this introductory video helpful:
If you're used to this style of gameplay, you might also be interested to know that the touchscreen controls are adjustable via the game's settings menu. Here, you can select an alternate control layout and adjust the sensitivity of the virtual D-pad.
And for those who prefer a more tactile gaming experience, the game also supports a variety of external controllers, including MFi devices.