The name of the app is Adobe Photoshop Express by Adobe Systems
DOWNLOAD Adobe Photoshop Express
But don't expect that this app has same functions as the desktop version.
However, I can say that this app has better editing and retouching features than the Instagram can offer. Here are the editing features of Adobe Photoshop Express!
Another edge of this app is that you can directly post your pictures in
As a default, only the pictures from your phone memory will show on the list of photos to be edited/uploaded.
How to enable other photos from your SD card?
tap the MENU button of your phone,
unchecked Show camera photos only in Phone view