Scrappd

Scrappd is scrap paper for your phone. Open it up, start typing, save, go.Scrappd only saves one note at a time, and automatically deletes old notes. It's great for when you need to record something but your main notes app is too permanent.
There are two extra features in Scrappd other than note-taking: - Share your notes to other people or apps - Change the font style
That's it.
Despite skimping on features, Scrappd doesn't skimp on design. It uses Material colors and icons, unlike all the other super-simple notes apps.