How to save a world in Minecraft Pocket Edition?

My friend has Minecraft Pocket Edition on his Android tablet. He was asking me how to save it because he can't find the save button. How do you save the world?

2 Answers

Pressing 'Quit to Title' in the menu will automatically save your world for you.

You must have the full version in order to save your worlds. ($6.99)

1

Press the quit to title button will save the game for you,