I've been using Clinometer as soon as it was released to level my Deardorff, but I found a much better app than Notes. It's called YouNote and it allows you to make photo, written, typed, or voice notes and it records your location via GPS linked to Google maps. You can also create tags for notes that make it much easier to categorize information. It's not perfect, but it kicks the stuffing out of the plain jane Notes app.