The Ghostwriter app recognizes your handwriting so that you can take notes by hand, not by using the keyboard. Unlike other apps like this, you don’t write directly into the document (resulting in too large handwriting and too little text on the page). Instead, you write in a magnified insert that automatically advances to the next line when you get to the edge of the insert. This results in even lines of handwriting. Write with your finger or a stylus.
You can add sketches and change the font size, style and color, too. Choose your paper style, color and background. You can export the entire notepad or just one page.
It's a bit awkward at first, but you start to get used to it after a while. I think this could be a useful app in the right situation. Personally, I type so fast, I'd rather type. But, if I needed to make sketches, too, I would try this app.