Evernote (iOS)
Used by 10 peopleapps.apple.com ↗

“As for my non-photography iPhone apps, I could not live without Evernote for note-taking, whether it be text or a photo.”
Kevin Meredith Interview, Photographer, teacher · via Uses This 

“As for my non-photography iPhone apps, I could not live without Evernote for note-taking, whether it be text or a photo.”