You wake up later that morning after using the app, and found that your arms were feeling rather itchy, when you opened your eyes. You rolled over, and suddenly you discover that your legs have become a pair of bird talons, as if they were a new pair of slippers that you didn't remember getting, until just now.
You get up, and notice the mirror next to your bed, as you get up, and came to a realization that you couldn't feel your fingers while getting out of bed, but you did manage to get up, as you look closer into the mirror. Your face, hair, and torso were normal, but you discovered what changed. Not only have your feet become talons, but you noticed that your arms have been replaced with yellow bird wings, while you have also sprouted a birds tail with the same colored feathers you have become a harpy.