SoundPaper is a powerful note-taking app for iPads. While you are typing in notes and using the drawing tool to add sketches, SoundPaper is recording audio so you don’t miss a detail. During playback, you can tap a word or a sketch, and SoundPaper automatically advances the audio playback to that point. The audio portion is recorded in standard M4A format; a one-hour recording of high-quality audio is only 20 MB. You can share your notes through email, and you can transfer them to your Mac or Windows PC for archiving. SoundPaper will work for business people, students, journalists – anyone who needs to have comprehensive notes. Amazingly enough, this app is only $4.99 in iTunes.