Remember Swapnote? That free application that used to come pre-installed on 3DS systems? Yes? Well, it's back! Well, sort-of. Nintendo released a free application a few days ago called Swapdoodle. It's very much the same, but I'll list off the main differences.
Streetpass functionality is not present. Multiple colors can be used on the same page. There are more colors. There are now drawing lessons. New content is unlocked via paid DLC instead of Play Coins. Screenshots are no longer able to be sent. Badges from Nintendo Badge Arcade are usable. Etc.