Superimpose by Pankaj Goswami
There are several apps available that enable you to layer your images, but Superimpose does it in a simple and precise manner. The app is designed to combine background and foreground layers, with a range of options for photo adjustments, such as transparency, brightness and contrast, painting and erase tools, and more. Superimpose was succeeded by Superimpose X, which is also considered the latest iteration of Leonardo, another photo editor by Goswami.