PanViewer is a Panorama Photo Viewer with the panning action of iPhone.
You can feel the surrounding presence of the image with rotating the device around yourself.
It shows any image in the Photo Library including those in iCloud, so that you can see your own panorama shots taken by your iPhone.
The app sets the view angle based on the aspect ratio of the image.
The view angle is adjustable between 60° through 360°.