You heard that right. Fox has released an American Idol app for both iPhone / iPad and Android in time for Season 12. This app is meant to be the companion for the Live show. I have not had the opportunity to try this myself yet, but so far the reviews are mostly positive.
Per iTunes -
“Download the companion experience to vote for your favorite contestants after Live shows, join the real-time social conversation, watch on-demand video and get all your Idol news right on your iPhone and iPad. You can also check out this year’s contestants, view fresh photos, access judge and host bios and much more!”
You can sign in using your favorite social app.