I had high hopes for Photo Studio HD, a universal US$1.99 app that provides an extremely wide selection of tools to edit and enhance photos.
The problem is, I really couldn't import any pictures and truly improve them using the app. The issues started when I opened a landscape image with the result that it lost most of its resolution and looked blurry and blocky. Not good for an app that calls itself Photo Studio HD.
In addition, the app's editing tools are difficult to launch. When you swipe across the scrolling list, sometimes a tool near your finger opens, instead of the expected movement to the next tool.
The sharpen tool made my picture look much worse. Few of the tools are subt