If you want to edit pictures on your phone and without Photoshop, B612 app would be a great option for you. This simple and popular app allows you editing your pictures such as selfies directly on your iOS or Android device.
Using B612 you would be able to change colors and add effects or smileys to your pictures. This app includes dozens of different effects that you can use to make your pictures more beautiful.
Download for Android devices:
Download for iOS devices: