GoodNotes - GoodNotes lets you take notes and annotate PDF documents.
MyAlbum - The fastest way to your most beautiful album. Share online or orders as a photo book.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Stampsy - A single place to share, curate and discover visual content
Notepad by Braden Farmer - Notepad is an app by Braden Farmer that offers features that let you write and save plain as well as rich text notes by using HTML or Markdown.
Imig.es - Imig.es is a versatile utility that offers you to make your own desired gallery without any effort.