Once in the settings menu, players can navigate to the "Game" section, where they will find a sub-menu for "Difficulty." There are four different difficulty levels to choose from:

Peaceful: In this mode, hostile mobs will not spawn in the world, and players will not take damage from hunger or environmental factors like drowning or falling.

Easy: In this mode, hostile mobs will spawn in the world, but they deal less damage and have fewer hit points. Hunger and environmental factors still apply.

Normal: This is the default difficulty level in Minecraft Apk Pocket Edition. Hostile mobs spawn with their normal hit points and damage values, and hunger and environmental factors still apply.

Hard: In this mode, hostile mobs are even stronger and more difficult to defeat. Hunger and environmental factors are more severe, and players will take more damage from these sources.

Changing the difficulty level affects all players in the world, so it's important to communicate with other players before making any changes. Players can adjust the difficulty setting at any time during gameplay to adapt to changing circumstances or to provide a greater challenge.