Don’t buy it.
I deleted it after screwing around with it for 30 minutes. It loads a new screen for each image and it takes forever to load a folder. Its not the least bit intuitive and has no help files or instructions. Further I couldn’t even find any instructions online. Its crap. Buy Image Viewer if you are looking for a photo viewing app that actually works without a hassle. It may be fine for looking at an individual file but for leafing through a whole folder quickly it isn’t the thing you are looking for.
Craig122 about Image View Studio: Gallery