I am using this app from last 1years. This is so awesome Photo editing app at all. There are lot of editing modes provided in the app. Me generally use it to edit raw images or .dng image file. Because of it also support raw image editing. I am tagging some images for example that edited from raw images.
Such a great features in this app all editing are gui based and so easy to change the value ex. Brightness, contrast , etc. We can change rhe values by sliding so easily.