I also keep a diary on my smart phone. I use T2 Mood Tracker, which was designed for people with mood disorders. I have an Android phone, but it should be available for the iPhone too.
I can rate my moods, and write daily notes. I can review the notes, edit them, and view a chart of my moods.
You can create pdf or other types of reports to give to your therapist or pdoc.
I passworded the app so no one else can read it.
You can customize it to suit what you want to record.
Would that help?