What is stepper? Is it wizard?

I have a doubt what is stepper? There is confusion in term i.e being used or explained in iOS and Google Material design.

Which is the right meaning of stepper? Is iOS or material design right or none?

Reference Link

iOS: https://developer.apple.com/design/human-interface-guidelines/ios/controls/steppers/

Material Design: https://material-ui.com/demos/steppers/