qView is described as 'Qt-based image viewer designed to be practical and minimal' and is a Image Viewer in the Photos & Graphics category. There are more than 50 alternatives to qView for a variety of platforms, including Windows, Linux, Mac, Xfce and Online / Web-based. The best alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try nomacs or ImageGlass. Other great apps like qView are XnView MP (Free Personal), FastStone Image Viewer (Free Personal), digiKam (Free, Open Source) and XnView (Free Personal).
nomacs is a small, fast image viewer able to handle the most common image formats including RAW images. Additionally it is possible to synchronize multiple viewers. A synchronization of viewers running on the same computer or via LAN is possible.
ImageGlass is a simple picture viewer with which you will be able to display your image collection in a very similar way to the one that Windows provides by default, but with some additional functions.
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.
digiKam is an advanced digital photo management application which makes importing and organizing digital photos a "snap". The photos are organized in albums which can be sorted chronologically, by folder layout or by custom collections.