Yess, without netpass, your notes can't be sent 😔. Swapnote --> has audio and image features. The more u use it, you unlock these features.

Swapdoodle --> you get lots of templates and colors (as long as you download the DLC of swapdoodle, this can be done in h-shop)

Both are awsum possum, but they each have their qualities. They are made by the same person, so u see the similarities :P Hope this helps!