Draw smooth curve freehand?

[Shotster]

I'm considering getting AD for iPad, but I'd like to know if it's possible to "draw" lines freehand and have AD "smooth" them as they are drawn. I've seen videos such as  this one, but honestly, I don't see the advantage of using a stylus for that.

Is there no way to simply draw as you would with a real pencil but have the lines automatically smoothed? Ideally, the degree of smoothing would be configurable.

Also, is this possible in the desktop version of AD?

[Alfred]

There’s a stabilizer function in both the desktop and the iPad versions of AD, offering a choice between ‘rope’ and ‘window’ mode.

[Shotster]

Thanks @Alfred, I guess I should take a closer look at the pencil tool instead of the pen tool.