What do you use to track your mood changes daily?

Do you use some paper diary, or some app on the phone (if yes, which one?), or..?

When my mood swings start, I track them by paper and show them to the pdoc when I see him.

After seeing this post, I looked to see if there was anything for bipolar specific and found emoods bipolar mood tracker. It has good ratings and reviews.

It's free, and has a donate button for anyone wishing to support them.
https://play.google.com/store/apps/deta ... cker&hl=en

It tracks level of:
how many hours of sleep
depression
elevated mood
irritability
anxiety
if any psychotic episodes happen
if talk therapy was had that day
A medication log
Extra notes
A calendar
A graph