FaceApp is a picture editing app that lets you apply quite a few really fun effects to your pictures. You can see how you would look much older, much younger, or with an incredibly effusive smile! You can also see what you would look like if you were the opposite sex. Using FaceApp is really quite simple; just take a selfie and click on any of the buttons on the lower part of your screen. The best part is that the results are not only fantastic but they are also instantaneous, unlike other similar apps that can take a while. FaceApp is a really fun picture editing app that lets you edit your pictures and give you hilarious results that you can share in other social media that you have installed in your smartphone.