PolyView is described as '® is a fast and powerful image viewer, conversion, and printing utility for Windows' and is an app in the Photos & Graphics category. There are more than 25 alternatives to PolyView for a variety of platforms, including Windows, Mac, Linux, PortableApps.com and Xfce. The best alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try JPEGView or Photoscape. Other great apps like PolyView are XnView MP (Free Personal), FastStone Image Viewer (Free Personal), XnView (Free Personal) and Preview (Free).
FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor. It has a nice array of features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments.
gThumb is an image viewer and browser for the GNOME Desktop. Features Image Viewer * View single images (including GIF animations). Supported image types are: BMP, JPEG, GIF, PNG, TIFF, ICO, XPM. * View EXIF data attached to JPEG images.
Imagine is an Image & Animation Viewer for Windows with screen capture function. Features - View and save image/animation files with very fast speed - Support for numerous image/animation file formats: GIF, BMP, PNG, JPG, TIF, TGA, PCX, ICO, ANI, FLI, and many more...