Do you have to pay Minecraft once or monthly?

Do I have to pay Minecraft (on the phone) once or every month?

Of course you only have to pay once for Minecraft.

Hourly, of course.

Little fun.

You only have to pay it once. After that, there are at most still in-app purchases. But you do not have to do this. Only if you Would like to have another texture pack.

Pay once. After that no more (unless you buy something in the marketplace).