Ever wondered what you're going to look like as an old person? Oldify 2 will give you some idea by aging your face.
You can capture a selfie, take a photo of someone else, or choose one from your camera roll. You can then age the face by 20, 40, or 60 years. The effect is impressive (if a bit creepy), with blinking eyes and a tilting head. You can even record your voice and add it.