Notability
If you want a notetaking app that can do just about anything, buy Notability. It’s great if you need one that’ll recognise and convert handwriting to text, import all sorts of file types, and sync your work to iCloud. You can annotate content as you please, and it’s even better when used with Apple Pencil. You can even combine audio recordings with annotations as you speak. It’s the complete note-taking app.