A free app for Android, by UniTiki.

Photo Editor Pro – Background Changer is a free photo editor app for Android phones and tablets that lets you remove unwanted objects from your pictures and add new backgrounds. The app offers a wide range of templates for you to choose from, with the option to change the background, add a new photo, and apply one of the many different effects. It’s a simple and fun way to make an artist image.

You can use this app to remove unwanted objects or backgrounds from your photos and add new ones.