Photomatix is described as 'Pro is a photography software primarily designed to make the process of creating high dynamic range photos easier and more streamlined. By automatically blending multiple exposures of photos, it has the ability to create fully 32-bit images as well as tone mapped' and is a Image Editor in the photos & graphics category. There are more than 10 alternatives to Photomatix for a variety of platforms, including Windows, Mac, iPhone, Linux and Android apps. The best Photomatix alternative is Adobe Photoshop. It's not free, so if you're looking for a free alternative, you could try Luminance HDR or Enblend/Enfuse. Other great apps like Photomatix are Dynamic Photo-HDR, Aurora HDR, Hydra and HDRtist.